79076921 has 16 divisors (see below), whose sum is σ = 102878208. Its totient is φ = 58938000.

The previous prime is 79076903. The next prime is 79076927. The reversal of 79076921 is 12967097.

It is a happy number.

It is not a de Polignac number, because 79076921 - 2⁶ = 79076857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79076927) 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, 20555 + ... + 24096.

It is an arithmetic number, because the mean of its divisors is an integer number (6429888).

Almost surely, 2^79076921 is an apocalyptic number.

It is an amenable number.

79076921 is a deficient number, since it is larger than the sum of its proper divisors (23801287).

79076921 is a wasteful number, since it uses less digits than its factorization.

79076921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44692.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 79076921 is about 8892.5205088321. The cubic root of 79076921 is about 429.2232615512.

It can be divided in two parts, 79076 and 921, that added together give a palindrome (79997).

The spelling of 79076921 in words is "seventy-nine million, seventy-six thousand, nine hundred twenty-one".