11943889 has 8 divisors (see below), whose sum is σ = 12264480. Its totient is φ = 11627616.

The previous prime is 11943881. The next prime is 11943907. The reversal of 11943889 is 98834911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11943889 - 2³ = 11943881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11943881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4962 + ... + 6964.

It is an arithmetic number, because the mean of its divisors is an integer number (1533060).

Almost surely, 2^11943889 is an apocalyptic number.

It is an amenable number.

11943889 is a deficient number, since it is larger than the sum of its proper divisors (320591).

11943889 is an equidigital number, since it uses as much as digits as its factorization.

11943889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its digits is 62208, while the sum is 43.

The square root of 11943889 is about 3455.9932002248. The cubic root of 11943889 is about 228.5854516508.

The spelling of 11943889 in words is "eleven million, nine hundred forty-three thousand, eight hundred eighty-nine".