79904079 has 18 divisors (see below), whose sum is σ = 116486448. Its totient is φ = 52779600.

The previous prime is 79904059. The next prime is 79904087. The reversal of 79904079 is 97040997.

It is not a de Polignac number, because 79904079 - 2⁷ = 79903951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79904059) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 294714 + ... + 294984.

Almost surely, 2^79904079 is an apocalyptic number.

79904079 is a deficient number, since it is larger than the sum of its proper divisors (36582369).

79904079 is a wasteful number, since it uses less digits than its factorization.

79904079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 79904079 is about 8938.9081548028. The cubic root of 79904079 is about 430.7146561904.

The spelling of 79904079 in words is "seventy-nine million, nine hundred four thousand, seventy-nine".