338839 has 2 divisors, whose sum is σ = 338840. Its totient is φ = 338838.

The previous prime is 338803. The next prime is 338851. The reversal of 338839 is 938833.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338839 is a prime.

It is a super-2 number, since 2×338839² = 229623735842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338339) 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, 169419 + 169420.

It is an arithmetic number, because the mean of its divisors is an integer number (169420).

2³³⁸⁸³⁹ is an apocalyptic number.

338839 is a deficient number, since it is larger than the sum of its proper divisors (1).

338839 is an equidigital number, since it uses as much as digits as its factorization.

338839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 338839 is about 582.0987888666. The cubic root of 338839 is about 69.7157863746.

The spelling of 338839 in words is "three hundred thirty-eight thousand, eight hundred thirty-nine".