86564572 has 6 divisors (see below), whose sum is σ = 151488008. Its totient is φ = 43282284.

The previous prime is 86564567. The next prime is 86564581. The reversal of 86564572 is 27546568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10820568 + ... + 10820575.

Almost surely, 2^86564572 is an apocalyptic number.

It is an amenable number.

86564572 is a deficient number, since it is larger than the sum of its proper divisors (64923436).

86564572 is a wasteful number, since it uses less digits than its factorization.

86564572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21641147 (or 21641145 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 86564572 is about 9304.0083834872. The cubic root of 86564572 is about 442.3642908981.

The spelling of 86564572 in words is "eighty-six million, five hundred sixty-four thousand, five hundred seventy-two".