13603868 has 18 divisors (see below), whose sum is σ = 24404016. Its totient is φ = 6632464.

The previous prime is 13603861. The next prime is 13603903. The reversal of 13603868 is 86830631.

It is a happy number.

13603868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13603868² = 370130449122848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13603861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50438 + ... + 50706.

Almost surely, 2^13603868 is an apocalyptic number.

It is an amenable number.

13603868 is a deficient number, since it is larger than the sum of its proper divisors (10800148).

13603868 is an equidigital number, since it uses as much as digits as its factorization.

13603868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 13603868 is about 3688.3421750158. The cubic root of 13603868 is about 238.7192656178.

The spelling of 13603868 in words is "thirteen million, six hundred three thousand, eight hundred sixty-eight".