76931740 has 24 divisors (see below), whose sum is σ = 161772912. Its totient is φ = 30731520.

The previous prime is 76931737. The next prime is 76931753. The reversal of 76931740 is 4713967.

It is a self number, because there is not a number n which added to its sum of digits gives 76931740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16020 + ... + 20260.

It is an arithmetic number, because the mean of its divisors is an integer number (6740538).

Almost surely, 2^76931740 is an apocalyptic number.

It is an amenable number.

76931740 is an abundant number, since it is smaller than the sum of its proper divisors (84841172).

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

76931740 is a wasteful number, since it uses less digits than its factorization.

76931740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5155 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 76931740 is about 8771.0740505368. The cubic root of 76931740 is about 425.3063350842.

The spelling of 76931740 in words is "seventy-six million, nine hundred thirty-one thousand, seven hundred forty".