76804520 has 64 divisors (see below), whose sum is σ = 187729920. Its totient is φ = 28111104.

The previous prime is 76804477. The next prime is 76804547. The reversal of 76804520 is 2540867.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 65459 + ... + 66621.

It is an arithmetic number, because the mean of its divisors is an integer number (2933280).

Almost surely, 2^76804520 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 76804520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93864960).

76804520 is an abundant number, since it is smaller than the sum of its proper divisors (110925400).

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

76804520 is a wasteful number, since it uses less digits than its factorization.

76804520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 76804520 is about 8763.8188023258. The cubic root of 76804520 is about 425.0717664274.

The spelling of 76804520 in words is "seventy-six million, eight hundred four thousand, five hundred twenty".