79959223 has 2 divisors, whose sum is σ = 79959224. Its totient is φ = 79959222.

The previous prime is 79959169. The next prime is 79959263. The reversal of 79959223 is 32295997.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79959223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79959263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39979611 + 39979612.

It is an arithmetic number, because the mean of its divisors is an integer number (39979612).

Almost surely, 2^79959223 is an apocalyptic number.

79959223 is a deficient number, since it is larger than the sum of its proper divisors (1).

79959223 is an equidigital number, since it uses as much as digits as its factorization.

79959223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The square root of 79959223 is about 8941.9921158543. The cubic root of 79959223 is about 430.8137160781.

The spelling of 79959223 in words is "seventy-nine million, nine hundred fifty-nine thousand, two hundred twenty-three".