13843213 has 2 divisors, whose sum is σ = 13843214. Its totient is φ = 13843212.

The previous prime is 13843177. The next prime is 13843223. The reversal of 13843213 is 31234831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 1857769 = 3462^2 + 1363^2 .

It is a cyclic number.

It is not a de Polignac number, because 13843213 - 2⁹ = 13842701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13843223) 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 as a sum of consecutive naturals, namely, 6921606 + 6921607.

It is an arithmetic number, because the mean of its divisors is an integer number (6921607).

Almost surely, 2^13843213 is an apocalyptic number.

It is an amenable number.

13843213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13843213 is an equidigital number, since it uses as much as digits as its factorization.

13843213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 13843213 is about 3720.6468523632. The cubic root of 13843213 is about 240.1111348723. Note that the first 4 decimals are identical.

The spelling of 13843213 in words is "thirteen million, eight hundred forty-three thousand, two hundred thirteen".