670463897 has 2 divisors, whose sum is σ = 670463898. Its totient is φ = 670463896.

The previous prime is 670463891. The next prime is 670463909. The reversal of 670463897 is 798364076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347039641 + 323424256 = 18629^2 + 17984^2 .

It is a cyclic number.

It is not a de Polignac number, because 670463897 - 2¹⁶ = 670398361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670463891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335231948 + 335231949.

It is an arithmetic number, because the mean of its divisors is an integer number (335231949).

Almost surely, 2^670463897 is an apocalyptic number.

It is an amenable number.

670463897 is a deficient number, since it is larger than the sum of its proper divisors (1).

670463897 is an equidigital number, since it uses as much as digits as its factorization.

670463897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 670463897 is about 25893.3176128514. The cubic root of 670463897 is about 875.2359187529.

The spelling of 670463897 in words is "six hundred seventy million, four hundred sixty-three thousand, eight hundred ninety-seven".