79442599 has 2 divisors, whose sum is σ = 79442600. Its totient is φ = 79442598.

The previous prime is 79442593. The next prime is 79442603. The reversal of 79442599 is 99524497.

It is a strong prime.

It is an emirp because it is prime and its reverse (99524497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79442599 - 2⁵ = 79442567 is a prime.

It is a super-2 number, since 2×79442599² = 12622253071749602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79442593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39721299 + 39721300.

It is an arithmetic number, because the mean of its divisors is an integer number (39721300).

Almost surely, 2^79442599 is an apocalyptic number.

79442599 is a deficient number, since it is larger than the sum of its proper divisors (1).

79442599 is an equidigital number, since it uses as much as digits as its factorization.

79442599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 79442599 is about 8913.0577805824. The cubic root of 79442599 is about 429.8838680436.

The spelling of 79442599 in words is "seventy-nine million, four hundred forty-two thousand, five hundred ninety-nine".