10989111 has 16 divisors (see below), whose sum is σ = 17199104. Its totient is φ = 6109344.

The previous prime is 10989109. The next prime is 10989127. The reversal of 10989111 is 11198901.

It is a happy number.

It is not a de Polignac number, because 10989111 - 2¹ = 10989109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989131) 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, 6295 + ... + 7848.

It is an arithmetic number, because the mean of its divisors is an integer number (1074944).

Almost surely, 2^10989111 is an apocalyptic number.

10989111 is a deficient number, since it is larger than the sum of its proper divisors (6209993).

10989111 is a wasteful number, since it uses less digits than its factorization.

10989111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 10989111 is about 3314.9828053853. The cubic root of 10989111 is about 222.3246002253.

It can be divided in two parts, 10 and 989111, that added together give a triangular number (989121 = T₁₄₀₆).

The spelling of 10989111 in words is "ten million, nine hundred eighty-nine thousand, one hundred eleven".