79814172 has 12 divisors (see below), whose sum is σ = 186233096. Its totient is φ = 26604720.

The previous prime is 79814159. The next prime is 79814173. The reversal of 79814172 is 27141897.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 79814172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79814173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3325579 + ... + 3325602.

Almost surely, 2^79814172 is an apocalyptic number.

It is an amenable number.

79814172 is an abundant number, since it is smaller than the sum of its proper divisors (106418924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79814172 is a wasteful number, since it uses less digits than its factorization.

79814172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651188 (or 6651186 counting only the distinct ones).

The product of its digits is 28224, while the sum is 39.

The square root of 79814172 is about 8933.8777694795. The cubic root of 79814172 is about 430.5530507748.

The spelling of 79814172 in words is "seventy-nine million, eight hundred fourteen thousand, one hundred seventy-two".