79409171 has 8 divisors (see below), whose sum is σ = 80955840. Its totient is φ = 77876712.

The previous prime is 79409167. The next prime is 79409177. The reversal of 79409171 is 17190497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79409171 - 2² = 79409167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79409177) 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 7 ways as a sum of consecutive naturals, for example, 8096 + ... + 14978.

It is an arithmetic number, because the mean of its divisors is an integer number (10119480).

Almost surely, 2^79409171 is an apocalyptic number.

79409171 is a deficient number, since it is larger than the sum of its proper divisors (1546669).

79409171 is a wasteful number, since it uses less digits than its factorization.

79409171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 79409171 is about 8911.1823570164. The cubic root of 79409171 is about 429.8235638149.

The spelling of 79409171 in words is "seventy-nine million, four hundred nine thousand, one hundred seventy-one".