663170713 has 2 divisors, whose sum is σ = 663170714. Its totient is φ = 663170712.

The previous prime is 663170689. The next prime is 663170741. The reversal of 663170713 is 317071366.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488719449 + 174451264 = 22107^2 + 13208^2 .

It is a cyclic number.

It is not a de Polignac number, because 663170713 - 2⁵ = 663170681 is a prime.

It is not a weakly prime, because it can be changed into another prime (663170113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331585356 + 331585357.

It is an arithmetic number, because the mean of its divisors is an integer number (331585357).

Almost surely, 2^663170713 is an apocalyptic number.

It is an amenable number.

663170713 is a deficient number, since it is larger than the sum of its proper divisors (1).

663170713 is an equidigital number, since it uses as much as digits as its factorization.

663170713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 663170713 is about 25752.1011375771. The cubic root of 663170713 is about 872.0507893607.

The spelling of 663170713 in words is "six hundred sixty-three million, one hundred seventy thousand, seven hundred thirteen".