670517 has 2 divisors, whose sum is σ = 670518. Its totient is φ = 670516.

The previous prime is 670511. The next prime is 670541. The reversal of 670517 is 715076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662596 + 7921 = 814^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 670517 - 2⁸ = 670261 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670517.

It is not a weakly prime, because it can be changed into another prime (670511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335258 + 335259.

It is an arithmetic number, because the mean of its divisors is an integer number (335259).

2⁶⁷⁰⁵¹⁷ is an apocalyptic number.

It is an amenable number.

670517 is a deficient number, since it is larger than the sum of its proper divisors (1).

670517 is an equidigital number, since it uses as much as digits as its factorization.

670517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 670517 is about 818.8510243017. The cubic root of 670517 is about 87.5259025354.

The spelling of 670517 in words is "six hundred seventy thousand, five hundred seventeen".