79210231 has 4 divisors (see below), whose sum is σ = 79257672. Its totient is φ = 79162792.

The previous prime is 79210217. The next prime is 79210289. The reversal of 79210231 is 13201297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13201297 = 421 ⋅31357.

It is a cyclic number.

It is not a de Polignac number, because 79210231 - 2⁵ = 79210199 is a prime.

It is a super-2 number, since 2×79210231² = 12548521390146722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79210196 and 79210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79210211) 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, 21121 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (19814418).

Almost surely, 2^79210231 is an apocalyptic number.

79210231 is a deficient number, since it is larger than the sum of its proper divisors (47441).

79210231 is a wasteful number, since it uses less digits than its factorization.

79210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47440.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 79210231 is about 8900.0129775186. The cubic root of 79210231 is about 429.4643248440.

The spelling of 79210231 in words is "seventy-nine million, two hundred ten thousand, two hundred thirty-one".