79561413 has 16 divisors (see below), whose sum is σ = 121934400. Its totient is φ = 51211440.

The previous prime is 79561403. The next prime is 79561451. The reversal of 79561413 is 31416597.

It is not a de Polignac number, because 79561413 - 2¹⁴ = 79545029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79561403) 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, 50023 + ... + 51588.

It is an arithmetic number, because the mean of its divisors is an integer number (7620900).

Almost surely, 2^79561413 is an apocalyptic number.

It is an amenable number.

79561413 is a deficient number, since it is larger than the sum of its proper divisors (42372987).

79561413 is a wasteful number, since it uses less digits than its factorization.

79561413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101649 (or 101643 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 79561413 is about 8919.7204552609. The cubic root of 79561413 is about 430.0980720960.

The spelling of 79561413 in words is "seventy-nine million, five hundred sixty-one thousand, four hundred thirteen".