79959705 has 16 divisors (see below), whose sum is σ = 146212224. Its totient is φ = 36552960.

The previous prime is 79959679. The next prime is 79959713. The reversal of 79959705 is 50795997.

It is a happy number.

It is not a de Polignac number, because 79959705 - 2¹⁵ = 79926937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380656 + ... + 380865.

It is an arithmetic number, because the mean of its divisors is an integer number (9138264).

Almost surely, 2^79959705 is an apocalyptic number.

It is an amenable number.

79959705 is a deficient number, since it is larger than the sum of its proper divisors (66252519).

79959705 is a wasteful number, since it uses less digits than its factorization.

79959705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761536.

The product of its (nonzero) digits is 893025, while the sum is 51.

The square root of 79959705 is about 8942.0190673024. The cubic root of 79959705 is about 430.8145817352.

The spelling of 79959705 in words is "seventy-nine million, nine hundred fifty-nine thousand, seven hundred five".