79477171 has 4 divisors (see below), whose sum is σ = 83660200. Its totient is φ = 75294144.

The previous prime is 79477163. The next prime is 79477183. The reversal of 79477171 is 17177497.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79477171 - 2³ = 79477163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79477271) 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, 2091486 + ... + 2091523.

It is an arithmetic number, because the mean of its divisors is an integer number (20915050).

Almost surely, 2^79477171 is an apocalyptic number.

79477171 is a deficient number, since it is larger than the sum of its proper divisors (4183029).

79477171 is a wasteful number, since it uses less digits than its factorization.

79477171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183028.

The product of its digits is 86436, while the sum is 43.

The square root of 79477171 is about 8914.9969713960. The cubic root of 79477171 is about 429.9462182601.

The spelling of 79477171 in words is "seventy-nine million, four hundred seventy-seven thousand, one hundred seventy-one".