11533863 has 16 divisors (see below), whose sum is σ = 16877952. Its totient is φ = 6948000.

The previous prime is 11533861. The next prime is 11533867. The reversal of 11533863 is 36833511.

11533863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11533863 - 2¹ = 11533861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11533863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11533861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5008 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (1054872).

Almost surely, 2^11533863 is an apocalyptic number.

11533863 is a deficient number, since it is larger than the sum of its proper divisors (5344089).

11533863 is a wasteful number, since it uses less digits than its factorization.

11533863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its digits is 6480, while the sum is 30.

The square root of 11533863 is about 3396.1541484450. The cubic root of 11533863 is about 225.9392049385.

The spelling of 11533863 in words is "eleven million, five hundred thirty-three thousand, eight hundred sixty-three".