79959638 has 32 divisors (see below), whose sum is σ = 143735040. Its totient is φ = 32931360.

The previous prime is 79959631. The next prime is 79959679. The reversal of 79959638 is 83695997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79959631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5456 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (4491720).

Almost surely, 2^79959638 is an apocalyptic number.

79959638 is a deficient number, since it is larger than the sum of its proper divisors (63775402).

79959638 is a wasteful number, since it uses less digits than its factorization.

79959638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372.

The product of its digits is 3674160, while the sum is 56.

The square root of 79959638 is about 8942.0153209442. The cubic root of 79959638 is about 430.8144614055.

The spelling of 79959638 in words is "seventy-nine million, nine hundred fifty-nine thousand, six hundred thirty-eight".