76985556 has 24 divisors (see below), whose sum is σ = 181007904. Its totient is φ = 25465440.

The previous prime is 76985539. The next prime is 76985563. The reversal of 76985556 is 65558967.

It is a junction number, because it is equal to n+sod(n) for n = 76985499 and 76985508.

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, 22915 + ... + 26058.

It is an arithmetic number, because the mean of its divisors is an integer number (7541996).

Almost surely, 2^76985556 is an apocalyptic number.

It is an amenable number.

76985556 is an abundant number, since it is smaller than the sum of its proper divisors (104022348).

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

76985556 is a wasteful number, since it uses less digits than its factorization.

76985556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49111 (or 49109 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 51.

The square root of 76985556 is about 8774.1413255087. The cubic root of 76985556 is about 425.4054833715.

The spelling of 76985556 in words is "seventy-six million, nine hundred eighty-five thousand, five hundred fifty-six".