79219423 has 2 divisors, whose sum is σ = 79219424. Its totient is φ = 79219422.

The previous prime is 79219411. The next prime is 79219447. The reversal of 79219423 is 32491297.

It is a weak prime.

It is an emirp because it is prime and its reverse (32491297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79219423 - 2²⁵ = 45664991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79210423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39609711 + 39609712.

It is an arithmetic number, because the mean of its divisors is an integer number (39609712).

Almost surely, 2^79219423 is an apocalyptic number.

79219423 is a deficient number, since it is larger than the sum of its proper divisors (1).

79219423 is an equidigital number, since it uses as much as digits as its factorization.

79219423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 79219423 is about 8900.5293662793. The cubic root of 79219423 is about 429.4809366854.

The spelling of 79219423 in words is "seventy-nine million, two hundred nineteen thousand, four hundred twenty-three".