394943 has 2 divisors, whose sum is σ = 394944. Its totient is φ = 394942.

The previous prime is 394931. The next prime is 394963. The reversal of 394943 is 349493.

It is a weak prime.

It is an emirp because it is prime and its reverse (349493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394943 - 2⁶ = 394879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394963) 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, 197471 + 197472.

It is an arithmetic number, because the mean of its divisors is an integer number (197472).

2³⁹⁴⁹⁴³ is an apocalyptic number.

394943 is a deficient number, since it is larger than the sum of its proper divisors (1).

394943 is an equidigital number, since it uses as much as digits as its factorization.

394943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 394943 is about 628.4449060976. Note that the first 3 decimals coincide. The cubic root of 394943 is about 73.3688097403.

The spelling of 394943 in words is "three hundred ninety-four thousand, nine hundred forty-three".