394947 has 12 divisors (see below), whose sum is σ = 652080. Its totient is φ = 225648.

The previous prime is 394943. The next prime is 394963. The reversal of 394947 is 749493.

It is not a de Polignac number, because 394947 - 2² = 394943 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 394947.

It is not an unprimeable number, because it can be changed into a prime (394943) 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, 3072 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (54340).

2³⁹⁴⁹⁴⁷ is an apocalyptic number.

394947 is a deficient number, since it is larger than the sum of its proper divisors (257133).

394947 is a wasteful number, since it uses less digits than its factorization.

394947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282 (or 6279 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 394947 is about 628.4480885483. The cubic root of 394947 is about 73.3690574336.

The spelling of 394947 in words is "three hundred ninety-four thousand, nine hundred forty-seven".