76392121 has 12 divisors (see below), whose sum is σ = 83369188. Its totient is φ = 69584544.

The previous prime is 76392097. The next prime is 76392139. The reversal of 76392121 is 12129367.

It can be written as a sum of positive squares in 2 ways, for example, as 7502121 + 68890000 = 2739^2 + 8300^2 .

It is not a de Polignac number, because 76392121 - 2¹³ = 76383929 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76392221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89131 + ... + 89983.

Almost surely, 2^76392121 is an apocalyptic number.

It is an amenable number.

76392121 is a deficient number, since it is larger than the sum of its proper divisors (6977067).

76392121 is an equidigital number, since it uses as much as digits as its factorization.

76392121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 949 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 76392121 is about 8740.2586346172. The cubic root of 76392121 is about 424.3095983292.

The spelling of 76392121 in words is "seventy-six million, three hundred ninety-two thousand, one hundred twenty-one".