11564403 has 8 divisors (see below), whose sum is σ = 16326288. Its totient is φ = 7256064.

The previous prime is 11564381. The next prime is 11564447. The reversal of 11564403 is 30446511.

11564403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11564403 - 2⁶ = 11564339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11564503) 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 7 ways as a sum of consecutive naturals, for example, 113326 + ... + 113427.

It is an arithmetic number, because the mean of its divisors is an integer number (2040786).

Almost surely, 2^11564403 is an apocalyptic number.

11564403 is a deficient number, since it is larger than the sum of its proper divisors (4761885).

11564403 is a wasteful number, since it uses less digits than its factorization.

11564403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226773.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 11564403 is about 3400.6474383564. The cubic root of 11564403 is about 226.1384472921.

The spelling of 11564403 in words is "eleven million, five hundred sixty-four thousand, four hundred three".