659788079 has 2 divisors, whose sum is σ = 659788080. Its totient is φ = 659788078.

The previous prime is 659788067. The next prime is 659788081. The reversal of 659788079 is 970887956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 659788079 - 2²⁰ = 658739503 is a prime.

Together with 659788081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659788039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329894039 + 329894040.

It is an arithmetic number, because the mean of its divisors is an integer number (329894040).

Almost surely, 2^659788079 is an apocalyptic number.

659788079 is a deficient number, since it is larger than the sum of its proper divisors (1).

659788079 is an equidigital number, since it uses as much as digits as its factorization.

659788079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The square root of 659788079 is about 25686.3403193215. The cubic root of 659788079 is about 870.5655718300.

The spelling of 659788079 in words is "six hundred fifty-nine million, seven hundred eighty-eight thousand, seventy-nine".