872015568 has 40 divisors (see below), whose sum is σ = 2255436000. Its totient is φ = 290319744.

The previous prime is 872015563. The next prime is 872015591. The reversal of 872015568 is 865510278.

It is a super-2 number, since 2×872015568² = 1520822301668725248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872015563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30658 + ... + 51806.

It is an arithmetic number, because the mean of its divisors is an integer number (56385900).

Almost surely, 2^872015568 is an apocalyptic number.

It is an amenable number.

872015568 is an abundant number, since it is smaller than the sum of its proper divisors (1383420432).

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

872015568 is a wasteful number, since it uses less digits than its factorization.

872015568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22019 (or 22013 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 872015568 is about 29529.9097187919. The cubic root of 872015568 is about 955.3769216546.

The spelling of 872015568 in words is "eight hundred seventy-two million, fifteen thousand, five hundred sixty-eight".