79213163 has 4 divisors (see below), whose sum is σ = 79231680. Its totient is φ = 79194648.

The previous prime is 79213159. The next prime is 79213171. The reversal of 79213163 is 36131297.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36131297 = 47 ⋅768751.

It is a cyclic number.

It is not a de Polignac number, because 79213163 - 2² = 79213159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79213663) 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, 806 + ... + 12612.

It is an arithmetic number, because the mean of its divisors is an integer number (19807920).

Almost surely, 2^79213163 is an apocalyptic number.

79213163 is a deficient number, since it is larger than the sum of its proper divisors (18517).

79213163 is a wasteful number, since it uses less digits than its factorization.

79213163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18516.

The product of its digits is 6804, while the sum is 32.

The square root of 79213163 is about 8900.1776948553. The cubic root of 79213163 is about 429.4696237128.

The spelling of 79213163 in words is "seventy-nine million, two hundred thirteen thousand, one hundred sixty-three".