79859605 has 16 divisors (see below), whose sum is σ = 111590784. Its totient is φ = 53726400.

The previous prime is 79859587. The next prime is 79859639. The reversal of 79859605 is 50695897.

It is not a de Polignac number, because 79859605 - 2⁷ = 79859477 is a prime.

It is a Duffinian number.

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, 19671 + ... + 23380.

It is an arithmetic number, because the mean of its divisors is an integer number (6974424).

Almost surely, 2^79859605 is an apocalyptic number.

It is an amenable number.

79859605 is a deficient number, since it is larger than the sum of its proper divisors (31731179).

79859605 is a wasteful number, since it uses less digits than its factorization.

79859605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43116.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 79859605 is about 8936.4201445545. The cubic root of 79859605 is about 430.6347305307.

The spelling of 79859605 in words is "seventy-nine million, eight hundred fifty-nine thousand, six hundred five".