394971 has 12 divisors (see below), whose sum is σ = 548136. Its totient is φ = 252960.

The previous prime is 394969. The next prime is 394981. The reversal of 394971 is 179493.

It is not a de Polignac number, because 394971 - 2¹ = 394969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2815 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (45678).

2³⁹⁴⁹⁷¹ is an apocalyptic number.

394971 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

394971 is a deficient number, since it is larger than the sum of its proper divisors (153165).

394971 is a wasteful number, since it uses less digits than its factorization.

394971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 171 counting only the distinct ones).

The product of its digits is 6804, while the sum is 33.

The square root of 394971 is about 628.4671829141. The cubic root of 394971 is about 73.3705435585.

The spelling of 394971 in words is "three hundred ninety-four thousand, nine hundred seventy-one".