11894189 has 4 divisors (see below), whose sum is σ = 12003420. Its totient is φ = 11784960.

The previous prime is 11894159. The next prime is 11894191. The reversal of 11894189 is 98149811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5808100 + 6086089 = 2410^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 11894189 - 2⁸ = 11893933 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 (11894159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54452 + ... + 54669.

It is an arithmetic number, because the mean of its divisors is an integer number (3000855).

Almost surely, 2^11894189 is an apocalyptic number.

It is an amenable number.

11894189 is a deficient number, since it is larger than the sum of its proper divisors (109231).

11894189 is a wasteful number, since it uses less digits than its factorization.

11894189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109230.

The product of its digits is 20736, while the sum is 41.

The square root of 11894189 is about 3448.7952969117. The cubic root of 11894189 is about 228.2679534102.

The spelling of 11894189 in words is "eleven million, eight hundred ninety-four thousand, one hundred eighty-nine".