78768384 has 36 divisors (see below), whose sum is σ = 209640816. Its totient is φ = 26255872.

The previous prime is 78768367. The next prime is 78768397. The reversal of 78768384 is 48386787.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50514 + ... + 52049.

It is an arithmetic number, because the mean of its divisors is an integer number (5823356).

Almost surely, 2^78768384 is an apocalyptic number.

It is an amenable number.

78768384 is an abundant number, since it is smaller than the sum of its proper divisors (130872432).

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

78768384 is a wasteful number, since it uses less digits than its factorization.

78768384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102582 (or 102568 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The square root of 78768384 is about 8875.1554352586. The cubic root of 78768384 is about 428.6642958116.

The spelling of 78768384 in words is "seventy-eight million, seven hundred sixty-eight thousand, three hundred eighty-four".