79679605 has 16 divisors (see below), whose sum is σ = 98494704. Its totient is φ = 61841920.

The previous prime is 79679599. The next prime is 79679609. The reversal of 79679605 is 50697697.

It can be written as a sum of positive squares in 8 ways, for example, as 2643876 + 77035729 = 1626^2 + 8777^2 .

It is not a de Polignac number, because 79679605 - 2⁷ = 79679477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79679609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39399 + ... + 41371.

It is an arithmetic number, because the mean of its divisors is an integer number (6155919).

Almost surely, 2^79679605 is an apocalyptic number.

It is an amenable number.

79679605 is a deficient number, since it is larger than the sum of its proper divisors (18815099).

79679605 is a wasteful number, since it uses less digits than its factorization.

79679605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 79679605 is about 8926.3433162746. The cubic root of 79679605 is about 430.3109432943.

The spelling of 79679605 in words is "seventy-nine million, six hundred seventy-nine thousand, six hundred five".