77933256 has 64 divisors (see below), whose sum is σ = 203174400. Its totient is φ = 24909120.

The previous prime is 77933239. The next prime is 77933279. The reversal of 77933256 is 65233977.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 714930 + ... + 715038.

It is an arithmetic number, because the mean of its divisors is an integer number (3174600).

Almost surely, 2^77933256 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 77933256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101587200).

77933256 is an abundant number, since it is smaller than the sum of its proper divisors (125241144).

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

77933256 is a wasteful number, since it uses less digits than its factorization.

77933256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 145 counting only the distinct ones).

The product of its digits is 238140, while the sum is 42.

The square root of 77933256 is about 8827.9814227263. The cubic root of 77933256 is about 427.1439640201.

The spelling of 77933256 in words is "seventy-seven million, nine hundred thirty-three thousand, two hundred fifty-six".