79580916 has 18 divisors (see below), whose sum is σ = 201162962. Its totient is φ = 26526960.

The previous prime is 79580899. The next prime is 79580923. The reversal of 79580916 is 61908597.

It can be written as a sum of positive squares in only one way, i.e., 51065316 + 28515600 = 7146^2 + 5340^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1105255 + ... + 1105326.

Almost surely, 2^79580916 is an apocalyptic number.

It is an amenable number.

79580916 is an abundant number, since it is smaller than the sum of its proper divisors (121582046).

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

79580916 is a wasteful number, since it uses less digits than its factorization.

79580916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210591 (or 2210586 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 79580916 is about 8920.8136400219. The cubic root of 79580916 is about 430.1332127380.

The spelling of 79580916 in words is "seventy-nine million, five hundred eighty thousand, nine hundred sixteen".