394837 has 2 divisors, whose sum is σ = 394838. Its totient is φ = 394836.

The previous prime is 394829. The next prime is 394861. The reversal of 394837 is 738493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298116 + 96721 = 546^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 394837 - 2³ = 394829 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197418 + 197419.

It is an arithmetic number, because the mean of its divisors is an integer number (197419).

2³⁹⁴⁸³⁷ is an apocalyptic number.

It is an amenable number.

394837 is a deficient number, since it is larger than the sum of its proper divisors (1).

394837 is an equidigital number, since it uses as much as digits as its factorization.

394837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 394837 is about 628.3605652808. The cubic root of 394837 is about 73.3622452574.

The spelling of 394837 in words is "three hundred ninety-four thousand, eight hundred thirty-seven".