79403913 has 6 divisors (see below), whose sum is σ = 114694554. Its totient is φ = 52935936.

The previous prime is 79403897. The next prime is 79403917. The reversal of 79403913 is 31930497.

It can be written as a sum of positive squares in only one way, i.e., 62536464 + 16867449 = 7908^2 + 4107^2 .

It is not a de Polignac number, because 79403913 - 2⁴ = 79403897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79403917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4411320 + ... + 4411337.

It is an arithmetic number, because the mean of its divisors is an integer number (19115759).

Almost surely, 2^79403913 is an apocalyptic number.

It is an amenable number.

79403913 is a deficient number, since it is larger than the sum of its proper divisors (35290641).

79403913 is a wasteful number, since it uses less digits than its factorization.

79403913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8822663 (or 8822660 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 79403913 is about 8910.8873295537. The cubic root of 79403913 is about 429.8140768243.

The spelling of 79403913 in words is "seventy-nine million, four hundred three thousand, nine hundred thirteen".