243829 has 2 divisors, whose sum is σ = 243830. Its totient is φ = 243828.

The previous prime is 243809. The next prime is 243839. The reversal of 243829 is 928342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 106929 = 370^2 + 327^2 .

It is a cyclic number.

It is not a de Polignac number, because 243829 - 2⁷ = 243701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243797 and 243806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121914 + 121915.

It is an arithmetic number, because the mean of its divisors is an integer number (121915).

2²⁴³⁸²⁹ is an apocalyptic number.

It is an amenable number.

243829 is a deficient number, since it is larger than the sum of its proper divisors (1).

243829 is an equidigital number, since it uses as much as digits as its factorization.

243829 is an odious number, because the sum of its binary digits is odd.

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

The square root of 243829 is about 493.7904413818. The cubic root of 243829 is about 62.4733966778.

The spelling of 243829 in words is "two hundred forty-three thousand, eight hundred twenty-nine".