670266907 has 2 divisors, whose sum is σ = 670266908. Its totient is φ = 670266906.

The previous prime is 670266901. The next prime is 670266911. The reversal of 670266907 is 709662076.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670266907 is a prime.

It is not a weakly prime, because it can be changed into another prime (670266901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335133453 + 335133454.

It is an arithmetic number, because the mean of its divisors is an integer number (335133454).

Almost surely, 2^670266907 is an apocalyptic number.

670266907 is a deficient number, since it is larger than the sum of its proper divisors (1).

670266907 is an equidigital number, since it uses as much as digits as its factorization.

670266907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 670266907 is about 25889.5134562239. The cubic root of 670266907 is about 875.1501922319.

The spelling of 670266907 in words is "six hundred seventy million, two hundred sixty-six thousand, nine hundred seven".