13683427 has 4 divisors (see below), whose sum is σ = 13705416. Its totient is φ = 13661440.

The previous prime is 13683409. The next prime is 13683433. The reversal of 13683427 is 72438631.

It is a happy number.

13683427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13683427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13683392 and 13683401.

It is not an unprimeable number, because it can be changed into a prime (13683407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10033 + ... + 11314.

It is an arithmetic number, because the mean of its divisors is an integer number (3426354).

Almost surely, 2^13683427 is an apocalyptic number.

13683427 is a deficient number, since it is larger than the sum of its proper divisors (21989).

13683427 is an equidigital number, since it uses as much as digits as its factorization.

13683427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21988.

The product of its digits is 24192, while the sum is 34.

The square root of 13683427 is about 3699.1116501128. Note that the first 3 decimals coincide. The cubic root of 13683427 is about 239.1837257247.

The spelling of 13683427 in words is "thirteen million, six hundred eighty-three thousand, four hundred twenty-seven".