102864087 has 28 divisors (see below), whose sum is σ = 155424600. Its totient is φ = 68043888.

The previous prime is 102864079. The next prime is 102864101. The reversal of 102864087 is 780468201.

102864087 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 640 + 8 + 7 = 666.

It is not a de Polignac number, because 102864087 - 2³ = 102864079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102864017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 108148 + ... + 109094.

Almost surely, 2^102864087 is an apocalyptic number.

102864087 is a deficient number, since it is larger than the sum of its proper divisors (52560513).

102864087 is an frugal number, since it uses more digits than its factorization.

102864087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 102864087 is about 10142.1934018239. The cubic root of 102864087 is about 468.5485431914.

The spelling of 102864087 in words is "one hundred two million, eight hundred sixty-four thousand, eighty-seven".