670504931 has 2 divisors, whose sum is σ = 670504932. Its totient is φ = 670504930.

The previous prime is 670504909. The next prime is 670504937. The reversal of 670504931 is 139405076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670504931 is a prime.

It is a super-2 number, since 2×670504931² = 899153724990629522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 670504891 and 670504900.

It is not a weakly prime, because it can be changed into another prime (670504937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335252465 + 335252466.

It is an arithmetic number, because the mean of its divisors is an integer number (335252466).

Almost surely, 2^670504931 is an apocalyptic number.

670504931 is a deficient number, since it is larger than the sum of its proper divisors (1).

670504931 is an equidigital number, since it uses as much as digits as its factorization.

670504931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 670504931 is about 25894.1099673265. The cubic root of 670504931 is about 875.2537739017.

The spelling of 670504931 in words is "six hundred seventy million, five hundred four thousand, nine hundred thirty-one".