97 (ninety-seven) is the

natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal n ...

following 96 and preceding 98. It is a

prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...

and the only prime in the nineties.

In mathematics

97 is: * the 25th

(the largest two-digit prime number in base 10), following 89 and preceding 101. * a

Proth prime A Proth number is a natural number ''N'' of the form N = k \times 2^n +1 where ''k'' and ''n'' are positive integers, ''k'' is odd and 2^n > k. A Proth prime is a Proth number that is prime. They are named after the French mathematician François ...

and a

Pierpont prime In number theory, a Pierpont prime is a prime number of the form 2^u\cdot 3^v + 1\, for some nonnegative integers and . That is, they are the prime numbers for which is 3-smooth. They are named after the mathematician James Pierpont, who use ...

as it is 3 × 2⁵ + 1. * the eleventh member of the

Mian–Chowla sequence In mathematics, the Mian–Chowla sequence is an integer sequence defined recursion, recursively in the following way. The sequence starts with :a_1 = 1. Then for n>1, a_n is the smallest integer such that every pairwise sum :a_i + a_j is di ...

. * a

self number In number theory, a self number or Devlali number in a given number base b is a natural number that cannot be written as the sum of any other natural number n and the individual digits of n. 20 is a self number (in base 10), because no such combina ...

in base 10, since there is no

integer An integer is the number zero (), a positive natural number (, , , etc.) or a negative integer with a minus sign (−1, −2, −3, etc.). The negative numbers are the additive inverses of the corresponding positive numbers. In the language ...

that added to its own digits, adds up to 97. * the smallest odd prime that is not a cluster prime. * the highest two-digit number where the sum of its digits is a square. * the number of primes <= 2⁹. * The numbers 97, 907, 9007, 90007 and 900007 are all primes, and they are all

happy prime In number theory, a happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. For instance, 13 is a happy number because 1^2+3^2=10, and 1^2+0^2=1. On the other hand, 4 is not a happy number because ...

s. However, 9000007 (read as ''nine million seven'') is

composite Composite or compositing may refer to: Materials * Composite material, a material that is made from several different substances ** Metal matrix composite, composed of metal and other parts ** Cermet, a composite of ceramic and metallic materials ...

and has the factorisation

277 __NOTOC__ Year 277 ( CCLXXVII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Probus and Paulinus (or, less frequently, year 1030 ''A ...

× 32491. * an

emirp An emirp (''prime'' spelled backwards) is a prime number that results in a different prime when its decimal digits are reversed. This definition excludes the related palindromic primes. The term ''reversible prime'' is used to mean the same as ...

* an isolated prime, since 95 and 99 aren't prime.

In science

Ninety-seven is: * The

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

berkelium Berkelium is a transuranic radioactive chemical element with the symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series. It is named after the city of Berkeley, California, the location of the Lawrence Ber ...

, an

actinide The actinide () or actinoid () series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. The actinide series derives its name from the first element in the series, actinium. The inform ...

In astronomy

Messier object The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his ''Catalogue des Nébuleuses et des Amas d'Étoiles'' (''Catalogue of Nebulae and Star Clusters''). Because Messier was only int ...

M97, a

magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...

12.0

planetary nebula A planetary nebula (PN, plural PNe) is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. The term "planetary nebula" is a misnomer because they are unrelate ...

in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

Ursa Major Ursa Major (; also known as the Great Bear) is a constellation in the northern sky, whose associated mythology likely dates back into prehistory. Its Latin name means "greater (or larger) bear," referring to and contrasting it with nearby Ursa ...

, also known as the

Owl Nebula The Owl Nebula (also known as Messier 97, M97 or NGC 3587) is a starburst planetary nebula, ("planetary") nebula approximately 2,030 light years away in the celestial hemisphere, northern constellation Ursa Major. The estimated age of the Owl Nebu ...

* The

New General Catalogue The ''New General Catalogue of Nebulae and Clusters of Stars'' (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and ...

object

NGC 97 NGC 97 is an elliptical galaxy estimated to be about 230 million light-years away in the constellation of Andromeda. It was discovered by John Herschel Sir John Frederick William Herschel, 1st Baronet (; 7 March 1792 – 11 May 1871) w ...

, an

elliptical galaxy An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the four main classes of galaxy described by Edwin Hubble in his Hubble sequence and 1936 work ''The Real ...

in the constellation Andromeda

In other fields

Ninety-seven is: * The 97th United States Congress met during the

Ronald Reagan Ronald Wilson Reagan ( ; February 6, 1911June 5, 2004) was an American politician, actor, and union leader who served as the 40th president of the United States from 1981 to 1989. He also served as the 33rd governor of California from 1967 ...

administration, from January 1981 to January 1983 * The 10-97

police code A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—someti ...

means "arrived on the scene" * STS-97 Space Shuttle ''Endeavour'' mission launched November 30, 2000 * The 97th Infantry Division was a unit of the

United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

and

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

* ''

Madden NFL 97 ''Madden NFL 97'' is a football video game released in 1996. It was the first multiplatform ''Madden'' game released for the 32-bit consoles (following a 3DO-exclusive version simply titled '' John Madden Football'' in 1994), being released on ...

'' was the first

John Madden John Earl Madden (April 10, 1936 – December 28, 2021) was an American football coach and sports commentator in the National Football League (NFL). He served as the head coach of the Oakland Raiders from 1969 to 1978, who he led to eight pla ...

NFL

American football American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with ...

game to be created in the 32-bit gaming era * Radio stations broadcasting on frequencies near 97, such as

Hot 97 WQHT (97.1 FM, ''Hot 97'') is a commercial radio station, licensed to New York, New York, which broadcasts an urban contemporary music format. The station is owned by Mediaco Holding and operated by Emmis Communications under a shared ser ...

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

and 97X,

Tampa Tampa () is a city on the Gulf Coast of the U.S. state of Florida. The city's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and the seat of Hillsborough County ...

, Florida * The decimal

unicode Unicode, formally The Unicode Standard,The formal version reference is is an information technology Technical standard, standard for the consistent character encoding, encoding, representation, and handling of Character (computing), text expre ...

number representing the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

lowercase "a"

In music

* A song " Baby Boy / Saturday Night '97" by

Whigfield Whigfield is an Italian dance act fronted by Danish singer, songwriter and record producer Sannie Charlotte Carlson (born 11 April 1970), known by her various stage names including Whigfield, Naan, or simply Sannie. She is best known for her 1993 ...

* The number of the Southern Railway train in the

Wreck of the Old 97 Wreck or The Wreck may refer to: Common uses * Wreck, a collision of an automobile, aircraft or other vehicle * Shipwreck, the remains of a ship after a crisis at sea Places * The Wreck (surf spot), a surf spot at Byron Bay, New South Wales, Aus ...

, a ballad recorded by numerous artists, including

Flatt and Scruggs Flatt and Scruggs were an American bluegrass duo. Singer and guitarist Lester Flatt and banjo player Earl Scruggs, both of whom had been members of Bill Monroe's band, the Bluegrass Boys, from 1945 to 1948, formed the duo in 1948. Flatt and Scru ...

Woody Guthrie Woodrow Wilson Guthrie (; July 14, 1912 – October 3, 1967) was an American singer-songwriter, one of the most significant figures in American folk music. His work focused on themes of American socialism and anti-fascism. He has inspired ...

Johnny Cash John R. Cash (born J. R. Cash; February 26, 1932 – September 12, 2003) was an American country singer-songwriter. Much of Cash's music contained themes of sorrow, moral tribulation, and redemption, especially in the later stages of his ca ...

, Nine Pound Hammer, and

Hank Snow Clarence Eugene "Hank" Snow (May 9, 1914 – December 20, 1999) was a Canadian-American country music artist. Most popular in the 1950s, he had a career that spanned more than 50 years, he recorded 140 albums and charted more than 85 singles on ...

. * The

Old 97's Old 97's is an American rock band from Dallas, Texas. Formed in 1992, they have since released twelve studio albums, two full extended plays, shared split duty on another, and have one live album. Their most recent release is ''Twelfth''. The ...

are an

alt-country Alternative country, or alternative country rock (sometimes alt-country, insurgent country, Americana, or y'allternative), is a loosely defined subgenre of country music and/or country rock that includes acts that differ significantly in style ...

band, which took their name from the song "The Wreck of the Old ‘97". * A song by

Alkaline Trio Alkaline Trio is an American punk rock band from Chicago, Illinois. Since 2001, the band has consisted of Matt Skiba (vocals, guitar), Dan Andriano (vocals, bass) and Derek Grant (drums, vocals). Founded in late 1996 by Skiba, bassist Rob Do ...

off their self-titled album * The

Marching 97 The Marching 97 is the marching band of Lehigh University in Bethlehem, Pennsylvania. Founded in 1906, the band is known as "The Finest Band East of All Points West". It is a student-run organization, with an executive council of thirteen student ...

marching band A marching band is a group of musical instrument, instrumental musicians who perform while marching, often for entertainment or competition. Instrumentation typically includes brass instrument, brass, woodwind instrument, woodwind, and percus ...

Lehigh University Lehigh University (LU) is a private research university in Bethlehem, Pennsylvania in the Lehigh Valley region of eastern Pennsylvania. The university was established in 1865 by businessman Asa Packer and was originally affiliated with the Epis ...

. * District 97, a

progressive rock Progressive rock (shortened as prog rock or simply prog; sometimes conflated with art rock) is a broad genre of rock music that developed in the United Kingdom and United States through the mid- to late 1960s, peaking in the early 1970s. Init ...

band from the

Chicago area The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Encompassing 10,286 sq mi (28,120 km2), the metropolitan area includes the city of Chicago, its suburbs and hi ...

(named after the elementary school District 97 in

Oak Park, Illinois Oak Park is a village in Cook County, Illinois, adjacent to Chicago. It is the 29th-most populous municipality in Illinois with a population of 54,583 as of the 2020 U.S. Census estimate. Oak Park was first settled in 1835 and later incorporated in ...

In sports

* The car number of

Kurt Busch Kurt Thomas Busch (born August 4, 1978) is an American professional auto racing driver. He last competed full-time in the NASCAR Cup Series, driving the No. 45 Toyota Camry TRD for 23XI Racing. He is the 2004 NASCAR Cup Series champion and the ...

's Ford when he won the 2004 NASCAR Nextel Cup Series championship.

References

{{DEFAULTSORT:97 (Number) Integers