11328257 has 4 divisors (see below), whose sum is σ = 11334996. Its totient is φ = 11321520.

The previous prime is 11328211. The next prime is 11328271. The reversal of 11328257 is 75282311.

11328257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9991921 + 1336336 = 3161^2 + 1156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11328257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11328277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (2833749).

Almost surely, 2^11328257 is an apocalyptic number.

It is an amenable number.

11328257 is a deficient number, since it is larger than the sum of its proper divisors (6739).

11328257 is an equidigital number, since it uses as much as digits as its factorization.

11328257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738.

The product of its digits is 3360, while the sum is 29.

The square root of 11328257 is about 3365.7476138297. The cubic root of 11328257 is about 224.5885947192.

The spelling of 11328257 in words is "eleven million, three hundred twenty-eight thousand, two hundred fifty-seven".