79910005 has 16 divisors (see below), whose sum is σ = 109814400. Its totient is φ = 54683712.

The previous prime is 79909997. The next prime is 79910021. The reversal of 79910005 is 50001997.

It is a cyclic number.

It is not a de Polignac number, because 79910005 - 2³ = 79909997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17446 + ... + 21544.

It is an arithmetic number, because the mean of its divisors is an integer number (6863400).

Almost surely, 2^79910005 is an apocalyptic number.

It is an amenable number.

79910005 is a deficient number, since it is larger than the sum of its proper divisors (29904395).

79910005 is a wasteful number, since it uses less digits than its factorization.

79910005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 79910005 is about 8939.2396209074. The cubic root of 79910005 is about 430.7253037568.

The spelling of 79910005 in words is "seventy-nine million, nine hundred ten thousand, five".