13668903 has 12 divisors (see below), whose sum is σ = 19860360. Its totient is φ = 9058896.

The previous prime is 13668881. The next prime is 13668911. The reversal of 13668903 is 30986631.

It is a happy number.

13668903 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 13668903 - 2¹⁸ = 13406759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833 + ... + 5946.

It is an arithmetic number, because the mean of its divisors is an integer number (1655030).

Almost surely, 2^13668903 is an apocalyptic number.

13668903 is a deficient number, since it is larger than the sum of its proper divisors (6191457).

13668903 is a wasteful number, since it uses less digits than its factorization.

13668903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13668903 is about 3697.1479548430. The cubic root of 13668903 is about 239.0990701712.

The spelling of 13668903 in words is "thirteen million, six hundred sixty-eight thousand, nine hundred three".