76684256 has 48 divisors (see below), whose sum is σ = 166053888. Its totient is φ = 34569600.

The previous prime is 76684249. The next prime is 76684319. The reversal of 76684256 is 65248667.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 7 ways as a sum of consecutive naturals, for example, 45281 + ... + 46943.

It is an arithmetic number, because the mean of its divisors is an integer number (3459456).

Almost surely, 2^76684256 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 76684256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83026944).

76684256 is an abundant number, since it is smaller than the sum of its proper divisors (89369632).

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

76684256 is a wasteful number, since it uses less digits than its factorization.

76684256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1807 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 76684256 is about 8756.9547218197. The cubic root of 76684256 is about 424.8497849755.

The spelling of 76684256 in words is "seventy-six million, six hundred eighty-four thousand, two hundred fifty-six".