9663449 has 2 divisors, whose sum is σ = 9663450. Its totient is φ = 9663448.

The previous prime is 9663403. The next prime is 9663469. The reversal of 9663449 is 9443669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9653449 + 10000 = 3107^2 + 100^2 .

It is an emirp because it is prime and its reverse (9443669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9663449 - 2²⁰ = 8614873 is a prime.

It is not a weakly prime, because it can be changed into another prime (9663469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4831724 + 4831725.

It is an arithmetic number, because the mean of its divisors is an integer number (4831725).

Almost surely, 2^9663449 is an apocalyptic number.

It is an amenable number.

9663449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9663449 is an equidigital number, since it uses as much as digits as its factorization.

9663449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 9663449 is about 3108.6088528472. The cubic root of 9663449 is about 212.9989126147.

The spelling of 9663449 in words is "nine million, six hundred sixty-three thousand, four hundred forty-nine".