76507980 has 24 divisors (see below), whose sum is σ = 214222512. Its totient is φ = 20402112.

The previous prime is 76507979. The next prime is 76508011. The reversal of 76507980 is 8970567.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637507 + ... + 637626.

It is an arithmetic number, because the mean of its divisors is an integer number (8925938).

Almost surely, 2^76507980 is an apocalyptic number.

It is an amenable number.

76507980 is an abundant number, since it is smaller than the sum of its proper divisors (137714532).

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

76507980 is a wasteful number, since it uses less digits than its factorization.

76507980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275145 (or 1275143 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 76507980 is about 8746.8840166084. The cubic root of 76507980 is about 424.5239976389.

The spelling of 76507980 in words is "seventy-six million, five hundred seven thousand, nine hundred eighty".