77912496 has 120 divisors (see below), whose sum is σ = 239114160. Its totient is φ = 24205824.

The previous prime is 77912467. The next prime is 77912501. The reversal of 77912496 is 69421977.

77912496 is a `hidden beast` number, since 77 + 91 + 2 + 496 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756381 + ... + 756483.

It is an arithmetic number, because the mean of its divisors is an integer number (1992618).

Almost surely, 2^77912496 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 77912496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119557080).

77912496 is an abundant number, since it is smaller than the sum of its proper divisors (161201664).

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

77912496 is a wasteful number, since it uses less digits than its factorization.

77912496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 125 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 77912496 is about 8826.8055376790. The cubic root of 77912496 is about 427.1060328610.

The spelling of 77912496 in words is "seventy-seven million, nine hundred twelve thousand, four hundred ninety-six".