78944956 has 12 divisors (see below), whose sum is σ = 138387760. Its totient is φ = 39405600.

The previous prime is 78944951. The next prime is 78944969. The reversal of 78944956 is 65944987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78944951) 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, 14016 + ... + 18823.

Almost surely, 2^78944956 is an apocalyptic number.

It is an amenable number.

78944956 is a deficient number, since it is larger than the sum of its proper divisors (59442804).

78944956 is a wasteful number, since it uses less digits than its factorization.

78944956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33444 (or 33442 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 78944956 is about 8885.0974108335. The cubic root of 78944956 is about 428.9843634214.

The spelling of 78944956 in words is "seventy-eight million, nine hundred forty-four thousand, nine hundred fifty-six".