394171 has 4 divisors (see below), whose sum is σ = 395872. Its totient is φ = 392472.

The previous prime is 394169. The next prime is 394187. The reversal of 394171 is 171493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171493 = 7 ⋅24499.

It is a cyclic number.

It is not a de Polignac number, because 394171 - 2¹ = 394169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394271) 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, 435 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (98968).

2³⁹⁴¹⁷¹ is an apocalyptic number.

394171 is a deficient number, since it is larger than the sum of its proper divisors (1701).

394171 is a wasteful number, since it uses less digits than its factorization.

394171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its digits is 756, while the sum is 25.

The square root of 394171 is about 627.8303911089. The cubic root of 394171 is about 73.3209735827.

It can be divided in two parts, 394 and 171, that added together give a palindrome (565).

The spelling of 394171 in words is "three hundred ninety-four thousand, one hundred seventy-one".