79438456 has 16 divisors (see below), whose sum is σ = 149949000. Its totient is φ = 39452064.

The previous prime is 79438451. The next prime is 79438517. The reversal of 79438456 is 65483497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79438451) 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, 32130 + ... + 34513.

Almost surely, 2^79438456 is an apocalyptic number.

It is an amenable number.

79438456 is a deficient number, since it is larger than the sum of its proper divisors (70510544).

79438456 is a wasteful number, since it uses less digits than its factorization.

79438456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66798 (or 66794 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 79438456 is about 8912.8253657300. The cubic root of 79438456 is about 429.8763949757.

The spelling of 79438456 in words is "seventy-nine million, four hundred thirty-eight thousand, four hundred fifty-six".