394843 has 4 divisors (see below), whose sum is σ = 398080. Its totient is φ = 391608.

The previous prime is 394837. The next prime is 394861. The reversal of 394843 is 348493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394843 - 2⁵ = 394811 is a prime.

It is a Duffinian number.

394843 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (394813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (99520).

2³⁹⁴⁸⁴³ is an apocalyptic number.

394843 is a deficient number, since it is larger than the sum of its proper divisors (3237).

394843 is a wasteful number, since it uses less digits than its factorization.

394843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236.

The product of its digits is 10368, while the sum is 31.

The square root of 394843 is about 628.3653395915. The cubic root of 394843 is about 73.3626168632.

The spelling of 394843 in words is "three hundred ninety-four thousand, eight hundred forty-three".