9665449 has 2 divisors, whose sum is σ = 9665450. Its totient is φ = 9665448.

The previous prime is 9665441. The next prime is 9665477. The reversal of 9665449 is 9445669.

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., 8743849 + 921600 = 2957^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 9665449 - 2³ = 9665441 is a prime.

It is not a weakly prime, because it can be changed into another prime (9665441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832724 + 4832725.

It is an arithmetic number, because the mean of its divisors is an integer number (4832725).

Almost surely, 2^9665449 is an apocalyptic number.

It is an amenable number.

9665449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9665449 is an equidigital number, since it uses as much as digits as its factorization.

9665449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 9665449 is about 3108.9305235080. The cubic root of 9665449 is about 213.0136060724.

The spelling of 9665449 in words is "nine million, six hundred sixty-five thousand, four hundred forty-nine".