394871 has 4 divisors (see below), whose sum is σ = 404544. Its totient is φ = 385200.

The previous prime is 394861. The next prime is 394879. The reversal of 394871 is 178493.

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 394871 - 2¹⁰ = 393847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394879) 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, 4775 + ... + 4856.

It is an arithmetic number, because the mean of its divisors is an integer number (101136).

2³⁹⁴⁸⁷¹ is an apocalyptic number.

394871 is a deficient number, since it is larger than the sum of its proper divisors (9673).

394871 is an equidigital number, since it uses as much as digits as its factorization.

394871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672.

The product of its digits is 6048, while the sum is 32.

The square root of 394871 is about 628.3876192288. The cubic root of 394871 is about 73.3643509742.

The spelling of 394871 in words is "three hundred ninety-four thousand, eight hundred seventy-one".