868710087 has 24 divisors (see below), whose sum is σ = 1472823456. Its totient is φ = 482988096.

The previous prime is 868710083. The next prime is 868710127. The reversal of 868710087 is 780017868.

It is not a de Polignac number, because 868710087 - 2² = 868710083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868710083) 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, 184008 + ... + 188669.

It is an arithmetic number, because the mean of its divisors is an integer number (61367644).

Almost surely, 2^868710087 is an apocalyptic number.

868710087 is a deficient number, since it is larger than the sum of its proper divisors (604113369).

868710087 is a wasteful number, since it uses less digits than its factorization.

868710087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372727 (or 372724 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 868710087 is about 29473.8882233071. Note that the first 3 decimals coincide. The cubic root of 868710087 is about 954.1682356943.

The spelling of 868710087 in words is "eight hundred sixty-eight million, seven hundred ten thousand, eighty-seven".