79870167 has 72 divisors (see below), whose sum is σ = 137574528. Its totient is φ = 44323200.

The previous prime is 79870151. The next prime is 79870169. The reversal of 79870167 is 76107897.

It is a happy number.

It is not a de Polignac number, because 79870167 - 2⁴ = 79870151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79870169) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1309317 + ... + 1309377.

Almost surely, 2^79870167 is an apocalyptic number.

79870167 is a deficient number, since it is larger than the sum of its proper divisors (57704361).

79870167 is a wasteful number, since it uses less digits than its factorization.

79870167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 79870167 is about 8937.0110775359. The cubic root of 79870167 is about 430.6537145278.

The spelling of 79870167 in words is "seventy-nine million, eight hundred seventy thousand, one hundred sixty-seven".