78872964 has 12 divisors (see below), whose sum is σ = 184036944. Its totient is φ = 26290984.

The previous prime is 78872921. The next prime is 78872987. The reversal of 78872964 is 46927887.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3286362 + ... + 3286385.

It is an arithmetic number, because the mean of its divisors is an integer number (15336412).

Almost surely, 2^78872964 is an apocalyptic number.

It is an amenable number.

78872964 is an abundant number, since it is smaller than the sum of its proper divisors (105163980).

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

78872964 is a wasteful number, since it uses less digits than its factorization.

78872964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572754 (or 6572752 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 78872964 is about 8881.0452087578. The cubic root of 78872964 is about 428.8539230217.

The spelling of 78872964 in words is "seventy-eight million, eight hundred seventy-two thousand, nine hundred sixty-four".