670768559 has 2 divisors, whose sum is σ = 670768560. Its totient is φ = 670768558.

The previous prime is 670768489. The next prime is 670768561. The reversal of 670768559 is 955867076.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670768559 - 2²⁸ = 402333103 is a prime.

Together with 670768561, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670768559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670738559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335384279 + 335384280.

It is an arithmetic number, because the mean of its divisors is an integer number (335384280).

Almost surely, 2^670768559 is an apocalyptic number.

670768559 is a deficient number, since it is larger than the sum of its proper divisors (1).

670768559 is an equidigital number, since it uses as much as digits as its factorization.

670768559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The square root of 670768559 is about 25899.1999683388. The cubic root of 670768559 is about 875.3684691396.

The spelling of 670768559 in words is "six hundred seventy million, seven hundred sixty-eight thousand, five hundred fifty-nine".