10989648 has 40 divisors (see below), whose sum is σ = 31545600. Its totient is φ = 3663072.

The previous prime is 10989617. The next prime is 10989659. The reversal of 10989648 is 84698901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12288 + ... + 13151.

It is an arithmetic number, because the mean of its divisors is an integer number (788640).

Almost surely, 2^10989648 is an apocalyptic number.

10989648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10989648 is an abundant number, since it is smaller than the sum of its proper divisors (20555952).

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

10989648 is a wasteful number, since it uses less digits than its factorization.

10989648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25456 (or 25444 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 10989648 is about 3315.0638002910. The cubic root of 10989648 is about 222.3282215787.

The spelling of 10989648 in words is "ten million, nine hundred eighty-nine thousand, six hundred forty-eight".