13216843 has 2 divisors, whose sum is σ = 13216844. Its totient is φ = 13216842.

The previous prime is 13216831. The next prime is 13216873. The reversal of 13216843 is 34861231.

13216843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13216843 - 2⁹ = 13216331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13216813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608421 + 6608422.

It is an arithmetic number, because the mean of its divisors is an integer number (6608422).

Almost surely, 2^13216843 is an apocalyptic number.

13216843 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216843 is an equidigital number, since it uses as much as digits as its factorization.

13216843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 13216843 is about 3635.4976275608. The cubic root of 13216843 is about 236.4336265430.

The spelling of 13216843 in words is "thirteen million, two hundred sixteen thousand, eight hundred forty-three".