380839 has 2 divisors, whose sum is σ = 380840. Its totient is φ = 380838.

The previous prime is 380837. The next prime is 380843. The reversal of 380839 is 938083.

It is a weak prime.

It is an emirp because it is prime and its reverse (938083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380839 - 2¹ = 380837 is a prime.

Together with 380837, it forms a pair of twin primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 380839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380837) 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, 190419 + 190420.

It is an arithmetic number, because the mean of its divisors is an integer number (190420).

2³⁸⁰⁸³⁹ is an apocalyptic number.

380839 is a deficient number, since it is larger than the sum of its proper divisors (1).

380839 is an equidigital number, since it uses as much as digits as its factorization.

380839 is an odious number, because the sum of its binary digits is odd.

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

The square root of 380839 is about 617.1215439441. The cubic root of 380839 is about 72.4848323403.

The spelling of 380839 in words is "three hundred eighty thousand, eight hundred thirty-nine".