13683668 has 12 divisors (see below), whose sum is σ = 24530772. Its totient is φ = 6674880.

The previous prime is 13683613. The next prime is 13683727. The reversal of 13683668 is 86638631.

13683668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 521284 + 13162384 = 722^2 + 3628^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41555 + ... + 41882.

It is an arithmetic number, because the mean of its divisors is an integer number (2044231).

Almost surely, 2^13683668 is an apocalyptic number.

It is an amenable number.

13683668 is a deficient number, since it is larger than the sum of its proper divisors (10847104).

13683668 is a wasteful number, since it uses less digits than its factorization.

13683668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83482 (or 83480 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 13683668 is about 3699.1442253581. The cubic root of 13683668 is about 239.1851299280.

The spelling of 13683668 in words is "thirteen million, six hundred eighty-three thousand, six hundred sixty-eight".