78864232 has 16 divisors (see below), whose sum is σ = 148436640. Its totient is φ = 39281136.

The previous prime is 78864229. The next prime is 78864257. The reversal of 78864232 is 23246887.

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, 16638 + ... + 20845.

It is an arithmetic number, because the mean of its divisors is an integer number (9277290).

Almost surely, 2^78864232 is an apocalyptic number.

It is an amenable number.

78864232 is a deficient number, since it is larger than the sum of its proper divisors (69572408).

78864232 is a wasteful number, since it uses less digits than its factorization.

78864232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37752 (or 37748 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 78864232 is about 8880.5535863481. The cubic root of 78864232 is about 428.8380963452.

The spelling of 78864232 in words is "seventy-eight million, eight hundred sixty-four thousand, two hundred thirty-two".