11538923 has 12 divisors (see below), whose sum is σ = 12959520. Its totient is φ = 10261680.

The previous prime is 11538911. The next prime is 11538953. The reversal of 11538923 is 32983511.

11538923 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 11538923 - 2¹⁰ = 11537899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11538923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538953) 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 11 ways as a sum of consecutive naturals, for example, 4673 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (1079960).

Almost surely, 2^11538923 is an apocalyptic number.

11538923 is a deficient number, since it is larger than the sum of its proper divisors (1420597).

11538923 is a wasteful number, since it uses less digits than its factorization.

11538923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2087 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 11538923 is about 3396.8990270539. The cubic root of 11538923 is about 225.9722405668.

The spelling of 11538923 in words is "eleven million, five hundred thirty-eight thousand, nine hundred twenty-three".