864876715 has 16 divisors (see below), whose sum is σ = 1074708000. Its totient is φ = 667378432.

The previous prime is 864876707. The next prime is 864876721. The reversal of 864876715 is 517678468.

It is a cyclic number.

It is not a de Polignac number, because 864876715 - 2³ = 864876707 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183711 + ... + 188359.

It is an arithmetic number, because the mean of its divisors is an integer number (67169250).

Almost surely, 2^864876715 is an apocalyptic number.

864876715 is a deficient number, since it is larger than the sum of its proper divisors (209831285).

864876715 is a wasteful number, since it uses less digits than its factorization.

864876715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966.

The product of its digits is 2257920, while the sum is 52.

The square root of 864876715 is about 29408.7863571416. The cubic root of 864876715 is about 952.7626746652.

The spelling of 864876715 in words is "eight hundred sixty-four million, eight hundred seventy-six thousand, seven hundred fifteen".