76872520 has 16 divisors (see below), whose sum is σ = 172963260. Its totient is φ = 30748992.

The previous prime is 76872511. The next prime is 76872539. The reversal of 76872520 is 2527867.

It can be written as a sum of positive squares in 2 ways, for example, as 76073284 + 799236 = 8722^2 + 894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76872520.

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 3 ways as a sum of consecutive naturals, for example, 960867 + ... + 960946.

Almost surely, 2^76872520 is an apocalyptic number.

It is an amenable number.

76872520 is an abundant number, since it is smaller than the sum of its proper divisors (96090740).

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

76872520 is a wasteful number, since it uses less digits than its factorization.

76872520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921824 (or 1921820 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 76872520 is about 8767.6975312792. The cubic root of 76872520 is about 425.1971772490.

The spelling of 76872520 in words is "seventy-six million, eight hundred seventy-two thousand, five hundred twenty".