872599056 has 120 divisors (see below), whose sum is σ = 2632179744. Its totient is φ = 248371200.

The previous prime is 872599031. The next prime is 872599061. The reversal of 872599056 is 650995278.

It is a happy number.

It is a super-2 number, since 2×872599056² = 1522858225064182272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829731 + ... + 830781.

Almost surely, 2^872599056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872599056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316089872).

872599056 is an abundant number, since it is smaller than the sum of its proper divisors (1759580688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872599056 is a wasteful number, since it uses less digits than its factorization.

872599056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 872599056 is about 29539.7876769621. The cubic root of 872599056 is about 955.5899632183.

The spelling of 872599056 in words is "eight hundred seventy-two million, five hundred ninety-nine thousand, fifty-six".