872815007 has 4 divisors (see below), whose sum is σ = 872975376. Its totient is φ = 872654640.

The previous prime is 872814997. The next prime is 872815019. The reversal of 872815007 is 700518278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 872815007 - 2⁸ = 872814751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872815057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71723 + ... + 83004.

It is an arithmetic number, because the mean of its divisors is an integer number (218243844).

Almost surely, 2^872815007 is an apocalyptic number.

872815007 is a deficient number, since it is larger than the sum of its proper divisors (160369).

872815007 is a wasteful number, since it uses less digits than its factorization.

872815007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160368.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 872815007 is about 29543.4427073082. The cubic root of 872815007 is about 955.6687865854.

The spelling of 872815007 in words is "eight hundred seventy-two million, eight hundred fifteen thousand, seven".