394839 has 12 divisors (see below), whose sum is σ = 600600. Its totient is φ = 249264.

The previous prime is 394837. The next prime is 394861. The reversal of 394839 is 938493.

It is not a de Polignac number, because 394839 - 2¹ = 394837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 984 + ... + 1325.

It is an arithmetic number, because the mean of its divisors is an integer number (50050).

2³⁹⁴⁸³⁹ is an apocalyptic number.

394839 is a deficient number, since it is larger than the sum of its proper divisors (205761).

394839 is a wasteful number, since it uses less digits than its factorization.

394839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2331 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 394839 is about 628.3621567217. The cubic root of 394839 is about 73.3623691264.

The spelling of 394839 in words is "three hundred ninety-four thousand, eight hundred thirty-nine".