670992317 has 8 divisors (see below), whose sum is σ = 700470720. Its totient is φ = 641539360.

The previous prime is 670992269. The next prime is 670992323. The reversal of 670992317 is 713299076.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 670992317 - 2¹² = 670988221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670992617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64409 + ... + 74097.

It is an arithmetic number, because the mean of its divisors is an integer number (87558840).

Almost surely, 2^670992317 is an apocalyptic number.

It is an amenable number.

670992317 is a deficient number, since it is larger than the sum of its proper divisors (29478403).

670992317 is a wasteful number, since it uses less digits than its factorization.

670992317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 670992317 is about 25903.5193940901. The cubic root of 670992317 is about 875.4657947718.

The spelling of 670992317 in words is "six hundred seventy million, nine hundred ninety-two thousand, three hundred seventeen".