87 may refer to:
*
87 (number)
87 (eighty-seven) is the natural number following 86 and preceding 88.
In mathematics
87 is:
* the sum of the squares of the first four primes (87 = 22 + 32 + 52 + 72).
* the sum of the sums of the divisors of the first 10 positive integers.
* ...
* one of the years
87 BC,
AD 87,
1987
File:1987 Events Collage.png, From top left, clockwise: The MS Herald of Free Enterprise capsizes after leaving the Port of Zeebrugge in Belgium, killing 193; Northwest Airlines Flight 255 crashes after takeoff from Detroit Metropolitan Airpor ...
,
2087, etc.
* Atomic number 87:
francium
Francium is a chemical element with the symbol Fr and atomic number 87. It is extremely radioactive; its most stable isotope, francium-223 (originally called actinium K after the natural decay chain it appears in), has a half-life of only 22 ...
*
Intel 8087, a floating-point coprocessor
See also
*
*
List of highways numbered
A ''list'' is any set of items in a row. List or lists may also refer to:
People
* List (surname)
Organizations
* List College, an undergraduate division of the Jewish Theological Seminary of America
* SC Germania List, German rugby union ...
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