38839 has 2 divisors, whose sum is σ = 38840. Its totient is φ = 38838.

The previous prime is 38833. The next prime is 38851. The reversal of 38839 is 93883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38839 - 2⁷ = 38711 is a prime.

38839 is a lucky number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 38839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38833) 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, 19419 + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (19420).

2³⁸⁸³⁹ is an apocalyptic number.

38839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38839 is an equidigital number, since it uses as much as digits as its factorization.

38839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 38839 is about 197.0761274229. The cubic root of 38839 is about 33.8653846795.

The spelling of 38839 in words is "thirty-eight thousand, eight hundred thirty-nine".