13728343 has 2 divisors, whose sum is σ = 13728344. Its totient is φ = 13728342.

The previous prime is 13728331. The next prime is 13728353. The reversal of 13728343 is 34382731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13728343 - 2¹⁷ = 13597271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13728353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6864171 + 6864172.

It is an arithmetic number, because the mean of its divisors is an integer number (6864172).

Almost surely, 2^13728343 is an apocalyptic number.

13728343 is a deficient number, since it is larger than the sum of its proper divisors (1).

13728343 is an equidigital number, since it uses as much as digits as its factorization.

13728343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 13728343 is about 3705.1778634770. The cubic root of 13728343 is about 239.4451476319.

The spelling of 13728343 in words is "thirteen million, seven hundred twenty-eight thousand, three hundred forty-three".