8909864 has 16 divisors (see below), whose sum is σ = 16739520. Its totient is φ = 4446000.

The previous prime is 8909863. The next prime is 8909867. The reversal of 8909864 is 4689098.

It is not an unprimeable number, because it can be changed into a prime (8909863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5267 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (1046220).

Almost surely, 2^8909864 is an apocalyptic number.

It is an amenable number.

8909864 is a deficient number, since it is larger than the sum of its proper divisors (7829656).

8909864 is a wasteful number, since it uses less digits than its factorization.

8909864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 8909864 is about 2984.9395303758. The cubic root of 8909864 is about 207.3116421053.

The spelling of 8909864 in words is "eight million, nine hundred nine thousand, eight hundred sixty-four".