10989564 has 24 divisors (see below), whose sum is σ = 25847808. Its totient is φ = 3633840.

The previous prime is 10989527. The next prime is 10989569. The reversal of 10989564 is 46598901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (1076992).

Almost surely, 2^10989564 is an apocalyptic number.

It is an amenable number.

10989564 is an abundant number, since it is smaller than the sum of its proper divisors (14858244).

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

10989564 is a wasteful number, since it uses less digits than its factorization.

10989564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345 (or 7343 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 10989564 is about 3315.0511308274. The cubic root of 10989564 is about 222.3276551178.

The spelling of 10989564 in words is "ten million, nine hundred eighty-nine thousand, five hundred sixty-four".