11941889 has 4 divisors (see below), whose sum is σ = 11980356. Its totient is φ = 11903424.

The previous prime is 11941883. The next prime is 11941921. The reversal of 11941889 is 98814911.

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 3268864 + 8673025 = 1808^2 + 2945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11941889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11941883) 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, 18764 + ... + 19389.

It is an arithmetic number, because the mean of its divisors is an integer number (2995089).

Almost surely, 2^11941889 is an apocalyptic number.

It is an amenable number.

11941889 is a deficient number, since it is larger than the sum of its proper divisors (38467).

11941889 is an equidigital number, since it uses as much as digits as its factorization.

11941889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38466.

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

The square root of 11941889 is about 3455.7038356896. The cubic root of 11941889 is about 228.5726920875.

The spelling of 11941889 in words is "eleven million, nine hundred forty-one thousand, eight hundred eighty-nine".