79720474 has 16 divisors (see below), whose sum is σ = 120636288. Its totient is φ = 39510432.

The previous prime is 79720471. The next prime is 79720481. The reversal of 79720474 is 47402797.

It is not an unprimeable number, because it can be changed into a prime (79720471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217039 + ... + 217405.

It is an arithmetic number, because the mean of its divisors is an integer number (7539768).

Almost surely, 2^79720474 is an apocalyptic number.

79720474 is a deficient number, since it is larger than the sum of its proper divisors (40915814).

79720474 is a wasteful number, since it uses less digits than its factorization.

79720474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 79720474 is about 8928.6322580785. The cubic root of 79720474 is about 430.3845019421.

The spelling of 79720474 in words is "seventy-nine million, seven hundred twenty thousand, four hundred seventy-four".