9713664 has 144 divisors (see below), whose sum is σ = 30663360. Its totient is φ = 2949120.

The previous prime is 9713653. The next prime is 9713689. The reversal of 9713664 is 4663179.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313329 + ... + 313359.

It is an arithmetic number, because the mean of its divisors is an integer number (212940).

Almost surely, 2^9713664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9713664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15331680).

9713664 is an abundant number, since it is smaller than the sum of its proper divisors (20949696).

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

9713664 is a wasteful number, since it uses less digits than its factorization.

9713664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 53 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 9713664 is about 3116.6751515036. The cubic root of 9713664 is about 213.3672168403.

The spelling of 9713664 in words is "nine million, seven hundred thirteen thousand, six hundred sixty-four".