79547904 has 120 divisors (see below), whose sum is σ = 234168792. Its totient is φ = 25989120.

The previous prime is 79547887. The next prime is 79547917. The reversal of 79547904 is 40974597.

It is a self number, because there is not a number n which added to its sum of digits gives 79547904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280947 + ... + 281229.

Almost surely, 2^79547904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79547904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117084396).

79547904 is an abundant number, since it is smaller than the sum of its proper divisors (154620888).

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

79547904 is a wasteful number, since it uses less digits than its factorization.

79547904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 79547904 is about 8918.9631684406. The cubic root of 79547904 is about 430.0737281186.

The spelling of 79547904 in words is "seventy-nine million, five hundred forty-seven thousand, nine hundred four".