9569664 has 160 divisors (see below), whose sum is σ = 31101840. Its totient is φ = 2903040.

The previous prime is 9569663. The next prime is 9569671. The reversal of 9569664 is 4669659.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9569663) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 134749 + ... + 134819.

Almost surely, 2^9569664 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 9569664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15550920).

9569664 is an abundant number, since it is smaller than the sum of its proper divisors (21532176).

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

9569664 is a wasteful number, since it uses less digits than its factorization.

9569664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 89 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 9569664 is about 3093.4873524875. The cubic root of 9569664 is about 212.3076108768.

The spelling of 9569664 in words is "nine million, five hundred sixty-nine thousand, six hundred sixty-four".