9639616 has 28 divisors (see below), whose sum is σ = 21862288. Its totient is φ = 4131072.

The previous prime is 9639601. The next prime is 9639649. The reversal of 9639616 is 6169369.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10311 + ... + 11206.

It is an arithmetic number, because the mean of its divisors is an integer number (780796).

Almost surely, 2^9639616 is an apocalyptic number.

It is an amenable number.

9639616 is an abundant number, since it is smaller than the sum of its proper divisors (12222672).

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

9639616 is a wasteful number, since it uses less digits than its factorization.

9639616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536 (or 21526 counting only the distinct ones).

The product of its digits is 52488, while the sum is 40.

The square root of 9639616 is about 3104.7730996000. The cubic root of 9639616 is about 212.8236617931.

The spelling of 9639616 in words is "nine million, six hundred thirty-nine thousand, six hundred sixteen".