79944731 has 2 divisors, whose sum is σ = 79944732. Its totient is φ = 79944730.

The previous prime is 79944721. The next prime is 79944749. The reversal of 79944731 is 13744997.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79944731 - 2²² = 75750427 is a prime.

It is a super-2 number, since 2×79944731² = 12782320029324722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79944721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39972365 + 39972366.

It is an arithmetic number, because the mean of its divisors is an integer number (39972366).

Almost surely, 2^79944731 is an apocalyptic number.

79944731 is a deficient number, since it is larger than the sum of its proper divisors (1).

79944731 is an equidigital number, since it uses as much as digits as its factorization.

79944731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 79944731 is about 8941.1817451610. The cubic root of 79944731 is about 430.7876872709.

The spelling of 79944731 in words is "seventy-nine million, nine hundred forty-four thousand, seven hundred thirty-one".