663810701 has 2 divisors, whose sum is σ = 663810702. Its totient is φ = 663810700.

The previous prime is 663810671. The next prime is 663810727. The reversal of 663810701 is 107018366.

663810701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 623500900 + 40309801 = 24970^2 + 6349^2 .

It is a cyclic number.

It is not a de Polignac number, because 663810701 - 2²⁶ = 596701837 is a prime.

It is a super-2 number, since 2×663810701² = 881289293524222802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663810731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331905350 + 331905351.

It is an arithmetic number, because the mean of its divisors is an integer number (331905351).

Almost surely, 2^663810701 is an apocalyptic number.

It is an amenable number.

663810701 is a deficient number, since it is larger than the sum of its proper divisors (1).

663810701 is an equidigital number, since it uses as much as digits as its factorization.

663810701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 663810701 is about 25764.5240786629. The cubic root of 663810701 is about 872.3312212289.

The spelling of 663810701 in words is "six hundred sixty-three million, eight hundred ten thousand, seven hundred one".