79617660 has 48 divisors (see below), whose sum is σ = 227144736. Its totient is φ = 20829952.

The previous prime is 79617649. The next prime is 79617677. The reversal of 79617660 is 6671697.

It is a congruent number.

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, 9339 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (4732182).

Almost surely, 2^79617660 is an apocalyptic number.

It is an amenable number.

79617660 is an abundant number, since it is smaller than the sum of its proper divisors (147527076).

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

79617660 is a wasteful number, since it uses less digits than its factorization.

79617660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25102 (or 25100 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 79617660 is about 8922.8728557567. The cubic root of 79617660 is about 430.1994027399.

The spelling of 79617660 in words is "seventy-nine million, six hundred seventeen thousand, six hundred sixty".