670047667 has 2 divisors, whose sum is σ = 670047668. Its totient is φ = 670047666.

The previous prime is 670047659. The next prime is 670047691. The reversal of 670047667 is 766740076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670047667 - 2³ = 670047659 is a prime.

It is not a weakly prime, because it can be changed into another prime (670047617) 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, 335023833 + 335023834.

It is an arithmetic number, because the mean of its divisors is an integer number (335023834).

Almost surely, 2^670047667 is an apocalyptic number.

670047667 is a deficient number, since it is larger than the sum of its proper divisors (1).

670047667 is an equidigital number, since it uses as much as digits as its factorization.

670047667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 670047667 is about 25885.2789631481. The cubic root of 670047667 is about 875.0547631575.

The spelling of 670047667 in words is "six hundred seventy million, forty-seven thousand, six hundred sixty-seven".