10989000 has 256 divisors, whose sum is σ = 42681600. Its totient is φ = 2592000.

The previous prime is 10988993. The next prime is 10989001. The reversal of 10989000 is 98901.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10989001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 296982 + ... + 297018.

It is an arithmetic number, because the mean of its divisors is an integer number (166725).

Almost surely, 2^10989000 is an apocalyptic number.

10989000 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 10989000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21340800).

10989000 is an abundant number, since it is smaller than the sum of its proper divisors (31692600).

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

10989000 is a wasteful number, since it uses less digits than its factorization.

10989000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 10989000 is about 3314.9660631747. The cubic root of 10989000 is about 222.3238516626.

The spelling of 10989000 in words is "ten million, nine hundred eighty-nine thousand".