79630831 has 24 divisors (see below), whose sum is σ = 96132096. Its totient is φ = 65726640.

The previous prime is 79630829. The next prime is 79630841. The reversal of 79630831 is 13803697.

It is not a de Polignac number, because 79630831 - 2¹ = 79630829 is a prime.

It is a super-2 number, since 2×79630831² = 12682138491501122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79630801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163270 + ... + 163756.

It is an arithmetic number, because the mean of its divisors is an integer number (4005504).

Almost surely, 2^79630831 is an apocalyptic number.

79630831 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79630831 is a deficient number, since it is larger than the sum of its proper divisors (16501265).

79630831 is a wasteful number, since it uses less digits than its factorization.

79630831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 79630831 is about 8923.6108722871. The cubic root of 79630831 is about 430.2231237917.

The spelling of 79630831 in words is "seventy-nine million, six hundred thirty thousand, eight hundred thirty-one".