9665216 has 28 divisors (see below), whose sum is σ = 20924520. Its totient is φ = 4392960.

The previous prime is 9665209. The next prime is 9665269. The reversal of 9665216 is 6125669.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161 + ... + 7568.

Almost surely, 2^9665216 is an apocalyptic number.

It is an amenable number.

9665216 is an abundant number, since it is smaller than the sum of its proper divisors (11259304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9665216 is a wasteful number, since it uses less digits than its factorization.

9665216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13752 (or 13742 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 9665216 is about 3108.8930505889. The cubic root of 9665216 is about 213.0118943889.

The spelling of 9665216 in words is "nine million, six hundred sixty-five thousand, two hundred sixteen".