79199423 has 2 divisors, whose sum is σ = 79199424. Its totient is φ = 79199422.

The previous prime is 79199401. The next prime is 79199431. The reversal of 79199423 is 32499197.

It is a strong prime.

It is an emirp because it is prime and its reverse (32499197) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79199423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79199443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39599711 + 39599712.

It is an arithmetic number, because the mean of its divisors is an integer number (39599712).

Almost surely, 2^79199423 is an apocalyptic number.

79199423 is a deficient number, since it is larger than the sum of its proper divisors (1).

79199423 is an equidigital number, since it uses as much as digits as its factorization.

79199423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 79199423 is about 8899.4057666790. The cubic root of 79199423 is about 429.4447909130. Note that the first 3 decimals are identical.

The spelling of 79199423 in words is "seventy-nine million, one hundred ninety-nine thousand, four hundred twenty-three".