79697518 has 16 divisors (see below), whose sum is σ = 120954240. Its totient is φ = 39382200.

The previous prime is 79697509. The next prime is 79697521. The reversal of 79697518 is 81579697.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86263 + ... + 87181.

It is an arithmetic number, because the mean of its divisors is an integer number (7559640).

Almost surely, 2^79697518 is an apocalyptic number.

79697518 is a deficient number, since it is larger than the sum of its proper divisors (41256722).

79697518 is a wasteful number, since it uses less digits than its factorization.

79697518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its digits is 952560, while the sum is 52.

The square root of 79697518 is about 8927.3466382795. The cubic root of 79697518 is about 430.3431873563.

The spelling of 79697518 in words is "seventy-nine million, six hundred ninety-seven thousand, five hundred eighteen".