79675919 has 2 divisors, whose sum is σ = 79675920. Its totient is φ = 79675918.

The previous prime is 79675909. The next prime is 79675969. The reversal of 79675919 is 91957697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79675919 - 2²⁰ = 78627343 is a prime.

It is a super-2 number, since 2×79675919² = 12696504136989122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79675909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39837959 + 39837960.

It is an arithmetic number, because the mean of its divisors is an integer number (39837960).

Almost surely, 2^79675919 is an apocalyptic number.

79675919 is a deficient number, since it is larger than the sum of its proper divisors (1).

79675919 is an equidigital number, since it uses as much as digits as its factorization.

79675919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630, while the sum is 53.

The square root of 79675919 is about 8926.1368463630. The cubic root of 79675919 is about 430.3043077586.

The spelling of 79675919 in words is "seventy-nine million, six hundred seventy-five thousand, nine hundred nineteen".