79564 has 6 divisors (see below), whose sum is σ = 139244. Its totient is φ = 39780.

The previous prime is 79561. The next prime is 79579. The reversal of 79564 is 46597.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (79561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9942 + ... + 9949.

2⁷⁹⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

79564 is a deficient number, since it is larger than the sum of its proper divisors (59680).

79564 is a wasteful number, since it uses less digits than its factorization.

79564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19895 (or 19893 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 79564 is about 282.0709130697. The cubic root of 79564 is about 43.0102733701.

The spelling of 79564 in words is "seventy-nine thousand, five hundred sixty-four".