79595489 has 2 divisors, whose sum is σ = 79595490. Its totient is φ = 79595488.

The previous prime is 79595449. The next prime is 79595491. The reversal of 79595489 is 98459597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61105489 + 18490000 = 7817^2 + 4300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79595489 is a prime.

It is a Sophie Germain prime.

Together with 79595491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79595449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39797744 + 39797745.

It is an arithmetic number, because the mean of its divisors is an integer number (39797745).

Almost surely, 2^79595489 is an apocalyptic number.

It is an amenable number.

79595489 is a deficient number, since it is larger than the sum of its proper divisors (1).

79595489 is an equidigital number, since it uses as much as digits as its factorization.

79595489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The square root of 79595489 is about 8921.6304003248. The cubic root of 79595489 is about 430.1594667238.

The spelling of 79595489 in words is "seventy-nine million, five hundred ninety-five thousand, four hundred eighty-nine".