11927189 has 4 divisors (see below), whose sum is σ = 11934240. Its totient is φ = 11920140.

The previous prime is 11927177. The next prime is 11927203. The reversal of 11927189 is 98172911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98172911 = 1583 ⋅62017.

It is a cyclic number.

It is not a de Polignac number, because 11927189 - 2⁸ = 11926933 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 (11927119) 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, 704 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (2983560).

Almost surely, 2^11927189 is an apocalyptic number.

It is an amenable number.

11927189 is a deficient number, since it is larger than the sum of its proper divisors (7051).

11927189 is an equidigital number, since it uses as much as digits as its factorization.

11927189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050.

The product of its digits is 9072, while the sum is 38.

The square root of 11927189 is about 3453.5762623692. The cubic root of 11927189 is about 228.4788655524.

The spelling of 11927189 in words is "eleven million, nine hundred twenty-seven thousand, one hundred eighty-nine".