79564668 has 24 divisors (see below), whose sum is σ = 187009872. Its totient is φ = 26327424.

The previous prime is 79564637. The next prime is 79564673. The reversal of 79564668 is 86646597.

It is a self number, because there is not a number n which added to its sum of digits gives 79564668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22555 + ... + 25842.

It is an arithmetic number, because the mean of its divisors is an integer number (7792078).

Almost surely, 2^79564668 is an apocalyptic number.

It is an amenable number.

79564668 is an abundant number, since it is smaller than the sum of its proper divisors (107445204).

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

79564668 is a wasteful number, since it uses less digits than its factorization.

79564668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48541 (or 48539 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 79564668 is about 8919.9029142699. The cubic root of 79564668 is about 430.1039373770.

The spelling of 79564668 in words is "seventy-nine million, five hundred sixty-four thousand, six hundred sixty-eight".