78903232 has 28 divisors (see below), whose sum is σ = 157734000. Its totient is φ = 39159296.

The previous prime is 78903199. The next prime is 78903233. The reversal of 78903232 is 23230987.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78903233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4269 + ... + 13267.

Almost surely, 2^78903232 is an apocalyptic number.

It is an amenable number.

78903232 is a deficient number, since it is larger than the sum of its proper divisors (78830768).

78903232 is a wasteful number, since it uses less digits than its factorization.

78903232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148 (or 9138 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 78903232 is about 8882.7491240043. The cubic root of 78903232 is about 428.9087744764.

The spelling of 78903232 in words is "seventy-eight million, nine hundred three thousand, two hundred thirty-two".