394686 has 16 divisors (see below), whose sum is σ = 877200. Its totient is φ = 131544.

The previous prime is 394673. The next prime is 394699. The reversal of 394686 is 686493.

It is an interprime number because it is at equal distance from previous prime (394673) and next prime (394699).

It is a self number, because there is not a number n which added to its sum of digits gives 394686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3601 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (54825).

2³⁹⁴⁶⁸⁶ is an apocalyptic number.

394686 is an abundant number, since it is smaller than the sum of its proper divisors (482514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394686 is a wasteful number, since it uses less digits than its factorization.

394686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320 (or 7314 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 394686 is about 628.2403998471. The cubic root of 394686 is about 73.3528919364.

The spelling of 394686 in words is "three hundred ninety-four thousand, six hundred eighty-six".