78765936 has 40 divisors (see below), whose sum is σ = 203796480. Its totient is φ = 26214336.

The previous prime is 78765931. The next prime is 78765959. The reversal of 78765936 is 63956787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78765931) 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, 60751 + ... + 62033.

It is an arithmetic number, because the mean of its divisors is an integer number (5094912).

Almost surely, 2^78765936 is an apocalyptic number.

It is an amenable number.

78765936 is an abundant number, since it is smaller than the sum of its proper divisors (125030544).

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

78765936 is a wasteful number, since it uses less digits than its factorization.

78765936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2567 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 78765936 is about 8875.0175211095. The cubic root of 78765936 is about 428.6598550237.

The spelling of 78765936 in words is "seventy-eight million, seven hundred sixty-five thousand, nine hundred thirty-six".