11889189 has 24 divisors (see below), whose sum is σ = 18610592. Its totient is φ = 7270560.

The previous prime is 11889181. The next prime is 11889191. The reversal of 11889189 is 98198811.

11889189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11889189 - 2³ = 11889181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889181) 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, 35754 + ... + 36084.

Almost surely, 2^11889189 is an apocalyptic number.

It is an amenable number.

11889189 is a deficient number, since it is larger than the sum of its proper divisors (6721403).

11889189 is a wasteful number, since it uses less digits than its factorization.

11889189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 654 counting only the distinct ones).

The product of its digits is 41472, while the sum is 45.

The square root of 11889189 is about 3448.0703299092. The cubic root of 11889189 is about 228.2359630062.

The spelling of 11889189 in words is "eleven million, eight hundred eighty-nine thousand, one hundred eighty-nine".