79909107 has 16 divisors (see below), whose sum is σ = 113280768. Its totient is φ = 49992800.

The previous prime is 79909087. The next prime is 79909111. The reversal of 79909107 is 70190997.

It is not a de Polignac number, because 79909107 - 2¹⁵ = 79876339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79909127) by changing a digit.

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, 7269 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (7080048).

Almost surely, 2^79909107 is an apocalyptic number.

79909107 is a deficient number, since it is larger than the sum of its proper divisors (33371661).

79909107 is a wasteful number, since it uses less digits than its factorization.

79909107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21930.

The product of its (nonzero) digits is 35721, while the sum is 42.

The square root of 79909107 is about 8939.1893927805. The cubic root of 79909107 is about 430.7236903052.

The spelling of 79909107 in words is "seventy-nine million, nine hundred nine thousand, one hundred seven".