872547564 has 48 divisors (see below), whose sum is σ = 2449260800. Its totient is φ = 236177856.

The previous prime is 872547551. The next prime is 872547587. The reversal of 872547564 is 465745278.

It is a super-2 number, since 2×872547564² = 1522678502884668192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271759 + ... + 274950.

Almost surely, 2^872547564 is an apocalyptic number.

872547564 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

872547564 is an abundant number, since it is smaller than the sum of its proper divisors (1576713236).

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

872547564 is a wasteful number, since it uses less digits than its factorization.

872547564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546742 (or 546740 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 48.

The square root of 872547564 is about 29538.9160938583. The cubic root of 872547564 is about 955.5711664196.

The spelling of 872547564 in words is "eight hundred seventy-two million, five hundred forty-seven thousand, five hundred sixty-four".