13868503 has 8 divisors (see below), whose sum is σ = 15192576. Its totient is φ = 12555000.

The previous prime is 13868497. The next prime is 13868521. The reversal of 13868503 is 30586831.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13868503 is a prime.

It is a super-2 number, since 2×13868503² = 384670750922018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868573) 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, 250 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (1899072).

Almost surely, 2^13868503 is an apocalyptic number.

13868503 is a deficient number, since it is larger than the sum of its proper divisors (1324073).

13868503 is a wasteful number, since it uses less digits than its factorization.

13868503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13868503 is about 3724.0439041451. The cubic root of 13868503 is about 240.2572646395.

It can be divided in two parts, 1386 and 8503, that added together give a palindrome (9889).

The spelling of 13868503 in words is "thirteen million, eight hundred sixty-eight thousand, five hundred three".