79131611 has 16 divisors (see below), whose sum is σ = 86692704. Its totient is φ = 71794944.

The previous prime is 79131601. The next prime is 79131629. The reversal of 79131611 is 11613197.

It is not a de Polignac number, because 79131611 - 2²² = 74937307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79131601) 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, 279476 + ... + 279758.

It is an arithmetic number, because the mean of its divisors is an integer number (5418294).

Almost surely, 2^79131611 is an apocalyptic number.

79131611 is a deficient number, since it is larger than the sum of its proper divisors (7561093).

79131611 is a wasteful number, since it uses less digits than its factorization.

79131611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590.

The product of its digits is 1134, while the sum is 29.

The square root of 79131611 is about 8895.5950334983. The cubic root of 79131611 is about 429.3221897438.

The spelling of 79131611 in words is "seventy-nine million, one hundred thirty-one thousand, six hundred eleven".