10889564 has 24 divisors (see below), whose sum is σ = 22226400. Its totient is φ = 4666368.

The previous prime is 10889561. The next prime is 10889573. The reversal of 10889564 is 46598801.

It is a super-2 number, since 2×10889564² = 237165208220192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889561) 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 7 ways as a sum of consecutive naturals, for example, 2597 + ... + 5340.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^10889564 is an apocalyptic number.

10889564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10889564 is an abundant number, since it is smaller than the sum of its proper divisors (11336836).

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

10889564 is an equidigital number, since it uses as much as digits as its factorization.

10889564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7946 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 10889564 is about 3299.9339387327. The cubic root of 10889564 is about 221.6512393080.

The spelling of 10889564 in words is "ten million, eight hundred eighty-nine thousand, five hundred sixty-four".