10890999 has 24 divisors (see below), whose sum is σ = 19038240. Its totient is φ = 5856768.

The previous prime is 10890989. The next prime is 10891039. The reversal of 10890999 is 99909801.

It is not a de Polignac number, because 10890999 - 2⁵ = 10890967 is a prime.

It is a super-2 number, since 2×10890999² = 237227718436002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10890989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4014 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (793260).

Almost surely, 2^10890999 is an apocalyptic number.

10890999 is a deficient number, since it is larger than the sum of its proper divisors (8147241).

10890999 is a wasteful number, since it uses less digits than its factorization.

10890999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10199 (or 10196 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 10890999 is about 3300.1513601652. The cubic root of 10890999 is about 221.6609750990.

The spelling of 10890999 in words is "ten million, eight hundred ninety thousand, nine hundred ninety-nine".