79455564 has 18 divisors (see below), whose sum is σ = 200846100. Its totient is φ = 26485176.

The previous prime is 79455487. The next prime is 79455577. The reversal of 79455564 is 46555497.

79455564 is a `hidden beast` number, since 7 + 94 + 5 + 556 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1103514 + ... + 1103585.

Almost surely, 2^79455564 is an apocalyptic number.

It is an amenable number.

79455564 is an abundant number, since it is smaller than the sum of its proper divisors (121390536).

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

79455564 is a wasteful number, since it uses less digits than its factorization.

79455564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207109 (or 2207104 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 79455564 is about 8913.7850546219. The cubic root of 79455564 is about 429.9072523960.

The spelling of 79455564 in words is "seventy-nine million, four hundred fifty-five thousand, five hundred sixty-four".