79382172 has 12 divisors (see below), whose sum is σ = 185225096. Its totient is φ = 26460720.

The previous prime is 79382159. The next prime is 79382179. The reversal of 79382172 is 27128397.

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 79382172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79382179) 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, 3307579 + ... + 3307602.

Almost surely, 2^79382172 is an apocalyptic number.

It is an amenable number.

79382172 is an abundant number, since it is smaller than the sum of its proper divisors (105842924).

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

79382172 is a wasteful number, since it uses less digits than its factorization.

79382172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615188 (or 6615186 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 79382172 is about 8909.6673338571. The cubic root of 79382172 is about 429.7748451690.

The spelling of 79382172 in words is "seventy-nine million, three hundred eighty-two thousand, one hundred seventy-two".