76988280 has 64 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 20416640.

The previous prime is 76988273. The next prime is 76988299. The reversal of 76988280 is 8288967.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21241 + ... + 24599.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^76988280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76988280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116121600).

76988280 is an abundant number, since it is smaller than the sum of its proper divisors (155254920).

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

76988280 is a wasteful number, since it uses less digits than its factorization.

76988280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 76988280 is about 8774.2965530007. The cubic root of 76988280 is about 425.4105007234.

The spelling of 76988280 in words is "seventy-six million, nine hundred eighty-eight thousand, two hundred eighty".