9663217 has 2 divisors, whose sum is σ = 9663218. Its totient is φ = 9663216.

The previous prime is 9663187. The next prime is 9663223. The reversal of 9663217 is 7123669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 1648656 = 2831^2 + 1284^2 .

It is a cyclic number.

It is not a de Polignac number, because 9663217 - 2¹⁹ = 9138929 is a prime.

It is not a weakly prime, because it can be changed into another prime (9663257) 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, 4831608 + 4831609.

It is an arithmetic number, because the mean of its divisors is an integer number (4831609).

Almost surely, 2^9663217 is an apocalyptic number.

It is an amenable number.

9663217 is a deficient number, since it is larger than the sum of its proper divisors (1).

9663217 is an equidigital number, since it uses as much as digits as its factorization.

9663217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 9663217 is about 3108.5715368960. The cubic root of 9663217 is about 212.9972080423.

The spelling of 9663217 in words is "nine million, six hundred sixty-three thousand, two hundred seventeen".