79412691 has 16 divisors (see below), whose sum is σ = 107467776. Its totient is φ = 52155456.

The previous prime is 79412659. The next prime is 79412699. The reversal of 79412691 is 19621497.

It is not a de Polignac number, because 79412691 - 2⁵ = 79412659 is a prime.

It is a super-2 number, since 2×79412691² = 12612750983722962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79412699) 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, 71446 + ... + 72548.

It is an arithmetic number, because the mean of its divisors is an integer number (6716736).

Almost surely, 2^79412691 is an apocalyptic number.

79412691 is a deficient number, since it is larger than the sum of its proper divisors (28055085).

79412691 is a wasteful number, since it uses less digits than its factorization.

79412691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442.

The product of its digits is 27216, while the sum is 39.

The square root of 79412691 is about 8911.3798594830. The cubic root of 79412691 is about 429.8299147043.

The spelling of 79412691 in words is "seventy-nine million, four hundred twelve thousand, six hundred ninety-one".