79673872 has 10 divisors (see below), whose sum is σ = 154368158. Its totient is φ = 39836928.

The previous prime is 79673851. The next prime is 79673873. The reversal of 79673872 is 27837697.

It can be written as a sum of positive squares in only one way, i.e., 54110736 + 25563136 = 7356^2 + 5056^2 .

It is not an unprimeable number, because it can be changed into a prime (79673873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489793 + ... + 2489824.

Almost surely, 2^79673872 is an apocalyptic number.

It is an amenable number.

79673872 is a deficient number, since it is larger than the sum of its proper divisors (74694286).

79673872 is a wasteful number, since it uses less digits than its factorization.

79673872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979625 (or 4979619 counting only the distinct ones).

The product of its digits is 889056, while the sum is 49.

The square root of 79673872 is about 8926.0221823610. The cubic root of 79673872 is about 430.3006226616.

The spelling of 79673872 in words is "seventy-nine million, six hundred seventy-three thousand, eight hundred seventy-two".