868102587 has 24 divisors (see below), whose sum is σ = 1387196928. Its totient is φ = 518708400.

The previous prime is 868102541. The next prime is 868102657. The reversal of 868102587 is 785201868.

868102587 is a `hidden beast` number, since 8 + 68 + 1 + 0 + 2 + 587 = 666.

It is not a de Polignac number, because 868102587 - 2⁶ = 868102523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868102507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54723 + ... + 68780.

It is an arithmetic number, because the mean of its divisors is an integer number (57799872).

Almost surely, 2^868102587 is an apocalyptic number.

868102587 is a deficient number, since it is larger than the sum of its proper divisors (519094341).

868102587 is a wasteful number, since it uses less digits than its factorization.

868102587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123591 (or 123588 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 868102587 is about 29463.5806887079. The cubic root of 868102587 is about 953.9457631706.

The spelling of 868102587 in words is "eight hundred sixty-eight million, one hundred two thousand, five hundred eighty-seven".