384839 has 8 divisors (see below), whose sum is σ = 473760. Its totient is φ = 304416.

The previous prime is 384827. The next prime is 384841. The reversal of 384839 is 938483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-384839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384799 and 384808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384889) 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 in 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2³⁸⁴⁸³⁹ is an apocalyptic number.

384839 is a deficient number, since it is larger than the sum of its proper divisors (88921).

384839 is a wasteful number, since it uses less digits than its factorization.

384839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249.

The product of its digits is 20736, while the sum is 35.

The square root of 384839 is about 620.3539312360. The cubic root of 384839 is about 72.7377214628.

The spelling of 384839 in words is "three hundred eighty-four thousand, eight hundred thirty-nine".