9665225 has 6 divisors (see below), whose sum is σ = 11984910. Its totient is φ = 7732160.

The previous prime is 9665209. The next prime is 9665269. The reversal of 9665225 is 5225669.

It can be written as a sum of positive squares in 3 ways, for example, as 2795584 + 6869641 = 1672^2 + 2621^2 .

It is not a de Polignac number, because 9665225 - 2⁴ = 9665209 is a prime.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 193280 + ... + 193329.

It is an arithmetic number, because the mean of its divisors is an integer number (1997485).

Almost surely, 2^9665225 is an apocalyptic number.

It is an amenable number.

9665225 is a deficient number, since it is larger than the sum of its proper divisors (2319685).

9665225 is a wasteful number, since it uses less digits than its factorization.

9665225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386619 (or 386614 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 9665225 is about 3108.8944980491. The cubic root of 9665225 is about 213.0119605060.

The spelling of 9665225 in words is "nine million, six hundred sixty-five thousand, two hundred twenty-five".