76715856 has 160 divisors (see below), whose sum is σ = 262840320. Its totient is φ = 20946816.

The previous prime is 76715831. The next prime is 76715861. The reversal of 76715856 is 65851767.

76715856 is a `hidden beast` number, since 7 + 67 + 1 + 585 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69001 + ... + 70103.

It is an arithmetic number, because the mean of its divisors is an integer number (1642752).

Almost surely, 2^76715856 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 76715856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131420160).

76715856 is an abundant number, since it is smaller than the sum of its proper divisors (186124464).

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

76715856 is a wasteful number, since it uses less digits than its factorization.

76715856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1138 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 76715856 is about 8758.7588161794. The cubic root of 76715856 is about 424.9081342388.

The spelling of 76715856 in words is "seventy-six million, seven hundred fifteen thousand, eight hundred fifty-six".