8989664 has 12 divisors (see below), whose sum is σ = 17698464. Its totient is φ = 4494816.

The previous prime is 8989661. The next prime is 8989667. The reversal of 8989664 is 4669898.

8989664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8989661) and next prime (8989667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140432 + ... + 140495.

It is an arithmetic number, because the mean of its divisors is an integer number (1474872).

Almost surely, 2^8989664 is an apocalyptic number.

It is an amenable number.

8989664 is a deficient number, since it is larger than the sum of its proper divisors (8708800).

8989664 is a wasteful number, since it uses less digits than its factorization.

8989664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280937 (or 280929 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 8989664 is about 2998.2768384524. The cubic root of 8989664 is about 207.9287231123.

The spelling of 8989664 in words is "eight million, nine hundred eighty-nine thousand, six hundred sixty-four".