9663564 has 12 divisors (see below), whose sum is σ = 22548344. Its totient is φ = 3221184.

The previous prime is 9663553. The next prime is 9663581. The reversal of 9663564 is 4653669.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 402637 + ... + 402660.

Almost surely, 2^9663564 is an apocalyptic number.

It is an amenable number.

9663564 is an abundant number, since it is smaller than the sum of its proper divisors (12884780).

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

9663564 is a wasteful number, since it uses less digits than its factorization.

9663564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805304 (or 805302 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 9663564 is about 3108.6273498121. The cubic root of 9663564 is about 212.9997575434. Note that the first 3 decimals are identical.

The spelling of 9663564 in words is "nine million, six hundred sixty-three thousand, five hundred sixty-four".