79171 has 4 divisors (see below), whose sum is σ = 81144. Its totient is φ = 77200.

The previous prime is 79159. The next prime is 79181. The reversal of 79171 is 17197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17197 = 29 ⋅593.

It is a cyclic number.

It is not a de Polignac number, because 79171 - 2⁵ = 79139 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79111) 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, 925 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (20286).

2⁷⁹¹⁷¹ is an apocalyptic number.

79171 is a deficient number, since it is larger than the sum of its proper divisors (1973).

79171 is a wasteful number, since it uses less digits than its factorization.

79171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 441, while the sum is 25.

The square root of 79171 is about 281.3734173656. The cubic root of 79171 is about 42.9393411878.

The spelling of 79171 in words is "seventy-nine thousand, one hundred seventy-one".