78965936 has 20 divisors (see below), whose sum is σ = 174853392. Its totient is φ = 33842496.

The previous prime is 78965917. The next prime is 78965947. The reversal of 78965936 is 63956987.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352415 + ... + 352638.

Almost surely, 2^78965936 is an apocalyptic number.

It is an amenable number.

78965936 is an abundant number, since it is smaller than the sum of its proper divisors (95887456).

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

78965936 is a wasteful number, since it uses less digits than its factorization.

78965936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705068 (or 705062 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 78965936 is about 8886.2779609913. The cubic root of 78965936 is about 429.0223616050.

The spelling of 78965936 in words is "seventy-eight million, nine hundred sixty-five thousand, nine hundred thirty-six".