79708447 has 12 divisors (see below), whose sum is σ = 99855336. Its totient is φ = 63065520.

The previous prime is 79708399. The next prime is 79708457. The reversal of 79708447 is 74480797.

It is not a de Polignac number, because 79708447 - 2⁷ = 79708319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79708397 and 79708406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79708457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61929 + ... + 63202.

It is an arithmetic number, because the mean of its divisors is an integer number (8321278).

Almost surely, 2^79708447 is an apocalyptic number.

79708447 is a deficient number, since it is larger than the sum of its proper divisors (20146889).

79708447 is a wasteful number, since it uses less digits than its factorization.

79708447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125158 (or 125151 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 79708447 is about 8927.9587252630. The cubic root of 79708447 is about 430.3628575871.

The spelling of 79708447 in words is "seventy-nine million, seven hundred eight thousand, four hundred forty-seven".