76822656 has 64 divisors (see below), whose sum is σ = 209614080. Its totient is φ = 24910848.

The previous prime is 76822651. The next prime is 76822657. The reversal of 76822656 is 65622867.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (76822651) 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, 11505 + ... + 16911.

It is an arithmetic number, because the mean of its divisors is an integer number (3275220).

Almost surely, 2^76822656 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 76822656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104807040).

76822656 is an abundant number, since it is smaller than the sum of its proper divisors (132791424).

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

76822656 is a wasteful number, since it uses less digits than its factorization.

76822656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461 (or 5449 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 76822656 is about 8764.8534500013. The cubic root of 76822656 is about 425.1052214673.

The spelling of 76822656 in words is "seventy-six million, eight hundred twenty-two thousand, six hundred fifty-six".