79171092 has 180 divisors, whose sum is σ = 270300576. Its totient is φ = 18982080.

The previous prime is 79171087. The next prime is 79171093. The reversal of 79171092 is 29017197.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79171093) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6090078 + ... + 6090090.

Almost surely, 2^79171092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79171092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135150288).

79171092 is an abundant number, since it is smaller than the sum of its proper divisors (191129484).

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

79171092 is a wasteful number, since it uses less digits than its factorization.

79171092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 79171092 is about 8897.8138888156. The cubic root of 79171092 is about 429.3935782024.

It can be divided in two parts, 7917 and 1092, that added together give a palindrome (9009).

The spelling of 79171092 in words is "seventy-nine million, one hundred seventy-one thousand, ninety-two".