9644664 has 16 divisors (see below), whose sum is σ = 24111720. Its totient is φ = 3214880.

The previous prime is 9644653. The next prime is 9644669. The reversal of 9644664 is 4664469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9644669) by changing a digit.

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, 200907 + ... + 200954.

Almost surely, 2^9644664 is an apocalyptic number.

It is an amenable number.

9644664 is an abundant number, since it is smaller than the sum of its proper divisors (14467056).

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

9644664 is a wasteful number, since it uses less digits than its factorization.

9644664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401870 (or 401866 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 9644664 is about 3105.5859350532. The cubic root of 9644664 is about 212.8608052632.

The spelling of 9644664 in words is "nine million, six hundred forty-four thousand, six hundred sixty-four".