13868613 has 48 divisors (see below), whose sum is σ = 23549760. Its totient is φ = 7776000.

The previous prime is 13868611. The next prime is 13868623. The reversal of 13868613 is 31686831.

13868613 is a `hidden beast` number, since 1 + 38 + 6 + 8 + 613 = 666.

13868613 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 13868613 - 2¹ = 13868611 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137263 + ... + 137363.

It is an arithmetic number, because the mean of its divisors is an integer number (490620).

Almost surely, 2^13868613 is an apocalyptic number.

It is an amenable number.

13868613 is a deficient number, since it is larger than the sum of its proper divisors (9681147).

13868613 is a wasteful number, since it uses less digits than its factorization.

13868613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 13868613 is about 3724.0586730072. The cubic root of 13868613 is about 240.2578998493.

It can be divided in two parts, 1386 and 8613, that added together give a palindrome (9999).

The spelling of 13868613 in words is "thirteen million, eight hundred sixty-eight thousand, six hundred thirteen".