394287 has 8 divisors (see below), whose sum is σ = 529536. Its totient is φ = 260952.

The previous prime is 394271. The next prime is 394291. The reversal of 394287 is 782493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 394287 - 2⁴ = 394271 is a prime.

394287 is a lucky number.

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 394287.

It is not an unprimeable number, because it can be changed into a prime (394187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (66192).

2³⁹⁴²⁸⁷ is an apocalyptic number.

394287 is a deficient number, since it is larger than the sum of its proper divisors (135249).

394287 is a wasteful number, since it uses less digits than its factorization.

394287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 12096, while the sum is 33.

The square root of 394287 is about 627.9227659514. The cubic root of 394287 is about 73.3281653842.

The spelling of 394287 in words is "three hundred ninety-four thousand, two hundred eighty-seven".