78902256 has 20 divisors (see below), whose sum is σ = 203830952. Its totient is φ = 26300736.

The previous prime is 78902233. The next prime is 78902261. The reversal of 78902256 is 65220987.

It is a happy number.

It is a congruent number.

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, 821851 + ... + 821946.

Almost surely, 2^78902256 is an apocalyptic number.

It is an amenable number.

78902256 is an abundant number, since it is smaller than the sum of its proper divisors (124928696).

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

78902256 is a wasteful number, since it uses less digits than its factorization.

78902256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643808 (or 1643802 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 78902256 is about 8882.6941858875. The cubic root of 78902256 is about 428.9070059950.

The spelling of 78902256 in words is "seventy-eight million, nine hundred two thousand, two hundred fifty-six".