11089000 has 64 divisors (see below), whose sum is σ = 27977040. Its totient is φ = 4089600.

The previous prime is 11088997. The next prime is 11089009. The reversal of 11089000 is 98011.

It can be written as a sum of positive squares in 8 ways, for example, as 887364 + 10201636 = 942^2 + 3194^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11089009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12574 + ... + 13426.

Almost surely, 2^11089000 is an apocalyptic number.

11089000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11089000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13988520).

11089000 is an abundant number, since it is smaller than the sum of its proper divisors (16888040).

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

11089000 is a wasteful number, since it uses less digits than its factorization.

11089000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 11089000 is about 3330.0150149812. The cubic root of 11089000 is about 222.9961993360.

The spelling of 11089000 in words is "eleven million, eighty-nine thousand".