663460097 has 2 divisors, whose sum is σ = 663460098. Its totient is φ = 663460096.

The previous prime is 663460087. The next prime is 663460121. The reversal of 663460097 is 790064366.

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., 661981441 + 1478656 = 25729^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 663460097 - 2²² = 659265793 is a prime.

It is a super-2 number, since 2×663460097² = 880358600622498818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (663460087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331730048 + 331730049.

It is an arithmetic number, because the mean of its divisors is an integer number (331730049).

Almost surely, 2^663460097 is an apocalyptic number.

It is an amenable number.

663460097 is a deficient number, since it is larger than the sum of its proper divisors (1).

663460097 is an equidigital number, since it uses as much as digits as its factorization.

663460097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 663460097 is about 25757.7191730945. The cubic root of 663460097 is about 872.1776148487.

The spelling of 663460097 in words is "six hundred sixty-three million, four hundred sixty thousand, ninety-seven".