10999000 has 64 divisors (see below), whose sum is σ = 27293760. Its totient is φ = 4134400.

The previous prime is 10998997. The next prime is 10999039. The reversal of 10999000 is 99901.

It is a self number, because there is not a number n which added to its sum of digits gives 10999000.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16677 + ... + 17323.

It is an arithmetic number, because the mean of its divisors is an integer number (426465).

Almost surely, 2^10999000 is an apocalyptic number.

10999000 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 10999000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13646880).

10999000 is an abundant number, since it is smaller than the sum of its proper divisors (16294760).

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

10999000 is a wasteful number, since it uses less digits than its factorization.

10999000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 10999000 is about 3316.4740312567. The cubic root of 10999000 is about 222.3912695191.

The spelling of 10999000 in words is "ten million, nine hundred ninety-nine thousand".