670007251 has 2 divisors, whose sum is σ = 670007252. Its totient is φ = 670007250.

The previous prime is 670007201. The next prime is 670007263. The reversal of 670007251 is 152700076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670007251 - 2⁹ = 670006739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670007201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335003625 + 335003626.

It is an arithmetic number, because the mean of its divisors is an integer number (335003626).

Almost surely, 2^670007251 is an apocalyptic number.

670007251 is a deficient number, since it is larger than the sum of its proper divisors (1).

670007251 is an equidigital number, since it uses as much as digits as its factorization.

670007251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 670007251 is about 25884.4982759952. The cubic root of 670007251 is about 875.0371689245.

The spelling of 670007251 in words is "six hundred seventy million, seven thousand, two hundred fifty-one".