8999648 has 24 divisors (see below), whose sum is σ = 20249712. Its totient is φ = 3856896.

The previous prime is 8999609. The next prime is 8999651. The reversal of 8999648 is 8469998.

It is a self number, because there is not a number n which added to its sum of digits gives 8999648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19865 + ... + 20312.

It is an arithmetic number, because the mean of its divisors is an integer number (843738).

Almost surely, 2^8999648 is an apocalyptic number.

It is an amenable number.

8999648 is an abundant number, since it is smaller than the sum of its proper divisors (11250064).

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

8999648 is a wasteful number, since it uses less digits than its factorization.

8999648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40194 (or 40186 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 8999648 is about 2999.9413327597. The cubic root of 8999648 is about 208.0056704569.

The spelling of 8999648 in words is "eight million, nine hundred ninety-nine thousand, six hundred forty-eight".