670507 has 2 divisors, whose sum is σ = 670508. Its totient is φ = 670506.

The previous prime is 670493. The next prime is 670511. The reversal of 670507 is 705076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670507 - 2⁷ = 670379 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (670517) 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, 335253 + 335254.

It is an arithmetic number, because the mean of its divisors is an integer number (335254).

2⁶⁷⁰⁵⁰⁷ is an apocalyptic number.

670507 is a deficient number, since it is larger than the sum of its proper divisors (1).

670507 is an equidigital number, since it uses as much as digits as its factorization.

670507 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 25.

The square root of 670507 is about 818.8449181622. The cubic root of 670507 is about 87.5254674168.

The spelling of 670507 in words is "six hundred seventy thousand, five hundred seven".