670212317 has 2 divisors, whose sum is σ = 670212318. Its totient is φ = 670212316.

The previous prime is 670212253. The next prime is 670212331. The reversal of 670212317 is 713212076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539818756 + 130393561 = 23234^2 + 11419^2 .

It is a cyclic number.

It is not a de Polignac number, because 670212317 - 2⁶ = 670212253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670212317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670212397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335106158 + 335106159.

It is an arithmetic number, because the mean of its divisors is an integer number (335106159).

Almost surely, 2^670212317 is an apocalyptic number.

It is an amenable number.

670212317 is a deficient number, since it is larger than the sum of its proper divisors (1).

670212317 is an equidigital number, since it uses as much as digits as its factorization.

670212317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 670212317 is about 25888.4591468863. The cubic root of 670212317 is about 875.1264326691.

The spelling of 670212317 in words is "six hundred seventy million, two hundred twelve thousand, three hundred seventeen".