79359621 has 16 divisors (see below), whose sum is σ = 122223168. Its totient is φ = 45267200.

The previous prime is 79359619. The next prime is 79359629. The reversal of 79359621 is 12695397.

It is not a de Polignac number, because 79359621 - 2¹ = 79359619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79359629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70170 + ... + 71291.

It is an arithmetic number, because the mean of its divisors is an integer number (7638948).

Almost surely, 2^79359621 is an apocalyptic number.

It is an amenable number.

79359621 is a deficient number, since it is larger than the sum of its proper divisors (42863547).

79359621 is a wasteful number, since it uses less digits than its factorization.

79359621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141492.

The product of its digits is 102060, while the sum is 42.

The square root of 79359621 is about 8908.4017084997. The cubic root of 79359621 is about 429.7341442988.

The spelling of 79359621 in words is "seventy-nine million, three hundred fifty-nine thousand, six hundred twenty-one".