13887903 has 8 divisors (see below), whose sum is σ = 18535600. Its totient is φ = 9249408.

The previous prime is 13887901. The next prime is 13887911. The reversal of 13887903 is 30978831.

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

It is not a de Polignac number, because 13887903 - 2¹ = 13887901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2913 + ... + 6021.

It is an arithmetic number, because the mean of its divisors is an integer number (2316950).

Almost surely, 2^13887903 is an apocalyptic number.

13887903 is a deficient number, since it is larger than the sum of its proper divisors (4647697).

13887903 is a wasteful number, since it uses less digits than its factorization.

13887903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 13887903 is about 3726.6476892779. The cubic root of 13887903 is about 240.3692406587.

The spelling of 13887903 in words is "thirteen million, eight hundred eighty-seven thousand, nine hundred three".