8329664 has 28 divisors (see below), whose sum is σ = 18891504. Its totient is φ = 3569664.

The previous prime is 8329661. The next prime is 8329691. The reversal of 8329664 is 4669238.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8329661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8849 + ... + 9744.

Almost surely, 2^8329664 is an apocalyptic number.

It is an amenable number.

8329664 is an abundant number, since it is smaller than the sum of its proper divisors (10561840).

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

8329664 is a wasteful number, since it uses less digits than its factorization.

8329664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18612 (or 18602 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 8329664 is about 2886.1157287954. The cubic root of 8329664 is about 202.7103053152.

The spelling of 8329664 in words is "eight million, three hundred twenty-nine thousand, six hundred sixty-four".