79688225 has 12 divisors (see below), whose sum is σ = 99410304. Its totient is φ = 63365520.

The previous prime is 79688221. The next prime is 79688227. The reversal of 79688225 is 52288697.

It is not a de Polignac number, because 79688225 - 2² = 79688221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79688225.

It is not an unprimeable number, because it can be changed into a prime (79688221) 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, 5369 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (8284192).

Almost surely, 2^79688225 is an apocalyptic number.

It is an amenable number.

79688225 is a deficient number, since it is larger than the sum of its proper divisors (19722079).

79688225 is a wasteful number, since it uses less digits than its factorization.

79688225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19264 (or 19259 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 79688225 is about 8926.8261437086. The cubic root of 79688225 is about 430.3264602160.

The spelling of 79688225 in words is "seventy-nine million, six hundred eighty-eight thousand, two hundred twenty-five".