76913920 has 36 divisors (see below), whose sum is σ = 184235940. Its totient is φ = 30765056.

The previous prime is 76913917. The next prime is 76913929. The reversal of 76913920 is 2931967.

It can be written as a sum of positive squares in 2 ways, for example, as 59474944 + 17438976 = 7712^2 + 4176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76913920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76913929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28765 + ... + 31324.

It is an arithmetic number, because the mean of its divisors is an integer number (5117665).

Almost surely, 2^76913920 is an apocalyptic number.

It is an amenable number.

76913920 is an abundant number, since it is smaller than the sum of its proper divisors (107322020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76913920 is an equidigital number, since it uses as much as digits as its factorization.

76913920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60110 (or 60096 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 76913920 is about 8770.0581526008. The cubic root of 76913920 is about 425.2734940914.

It can be divided in two parts, 7691 and 3920, that added together give a palindrome (11611).

The spelling of 76913920 in words is "seventy-six million, nine hundred thirteen thousand, nine hundred twenty".