76921131 has 24 divisors (see below), whose sum is σ = 124498944. Its totient is φ = 42042000.

The previous prime is 76921127. The next prime is 76921153. The reversal of 76921131 is 13112967.

It is not a de Polignac number, because 76921131 - 2² = 76921127 is a prime.

It is a super-2 number, since 2×76921131² = 11833720788638322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76921111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7995 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (5187456).

Almost surely, 2^76921131 is an apocalyptic number.

76921131 is a deficient number, since it is larger than the sum of its proper divisors (47577813).

76921131 is a wasteful number, since it uses less digits than its factorization.

76921131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22791 (or 22784 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 76921131 is about 8770.4692576851. The cubic root of 76921131 is about 425.2867840626.

The spelling of 76921131 in words is "seventy-six million, nine hundred twenty-one thousand, one hundred thirty-one".