76718656 has 56 divisors (see below), whose sum is σ = 183164480. Its totient is φ = 31145472.

The previous prime is 76718651. The next prime is 76718683. The reversal of 76718656 is 65681767.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (76718651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4006 + ... + 13018.

Almost surely, 2^76718656 is an apocalyptic number.

76718656 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76718656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91582240).

76718656 is an abundant number, since it is smaller than the sum of its proper divisors (106445824).

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

76718656 is a wasteful number, since it uses less digits than its factorization.

76718656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9051 (or 9041 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 76718656 is about 8758.9186547199. The cubic root of 76718656 is about 424.9133036538.

The spelling of 76718656 in words is "seventy-six million, seven hundred eighteen thousand, six hundred fifty-six".