11889321 has 16 divisors (see below), whose sum is σ = 16992384. Its totient is φ = 7375104.

The previous prime is 11889313. The next prime is 11889323. The reversal of 11889321 is 12398811.

It is not a de Polignac number, because 11889321 - 2³ = 11889313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11889323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (1062024).

Almost surely, 2^11889321 is an apocalyptic number.

It is an amenable number.

11889321 is a deficient number, since it is larger than the sum of its proper divisors (5103063).

11889321 is a wasteful number, since it uses less digits than its factorization.

11889321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720.

The product of its digits is 3456, while the sum is 33.

The square root of 11889321 is about 3448.0894709969. The cubic root of 11889321 is about 228.2368076681.

The spelling of 11889321 in words is "eleven million, eight hundred eighty-nine thousand, three hundred twenty-one".