11328389 has 4 divisors (see below), whose sum is σ = 11924640. Its totient is φ = 10732140.

The previous prime is 11328377. The next prime is 11328403. The reversal of 11328389 is 98382311.

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.

It is a cyclic number.

It is not a de Polignac number, because 11328389 - 2⁸ = 11328133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11328349) 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 3 ways as a sum of consecutive naturals, for example, 298097 + ... + 298134.

It is an arithmetic number, because the mean of its divisors is an integer number (2981160).

Almost surely, 2^11328389 is an apocalyptic number.

11328389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11328389 is a deficient number, since it is larger than the sum of its proper divisors (596251).

11328389 is an equidigital number, since it uses as much as digits as its factorization.

11328389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596250.

The product of its digits is 10368, while the sum is 35.

The square root of 11328389 is about 3365.7672230860. The cubic root of 11328389 is about 224.5894670387.

The spelling of 11328389 in words is "eleven million, three hundred twenty-eight thousand, three hundred eighty-nine".