9387664 has 60 divisors (see below), whose sum is σ = 21588028. Its totient is φ = 3928320.

The previous prime is 9387629. The next prime is 9387671. The reversal of 9387664 is 4667839.

It is a happy number.

9387664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3097600 + 6290064 = 1760^2 + 2508^2 .

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 9387664.

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, 24982 + ... + 25354.

Almost surely, 2^9387664 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 9387664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10794014).

9387664 is an abundant number, since it is smaller than the sum of its proper divisors (12200364).

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

9387664 is a wasteful number, since it uses less digits than its factorization.

9387664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 399 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 9387664 is about 3063.9295031054. The cubic root of 9387664 is about 210.9530678844.

The spelling of 9387664 in words is "nine million, three hundred eighty-seven thousand, six hundred sixty-four".