394986 has 8 divisors (see below), whose sum is σ = 789984. Its totient is φ = 131660.

The previous prime is 394981. The next prime is 394987. The reversal of 394986 is 689493.

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

394986 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (394981) by changing a digit.

394986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32910 + ... + 32921.

It is an arithmetic number, because the mean of its divisors is an integer number (98748).

2³⁹⁴⁹⁸⁶ is an apocalyptic number.

394986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394986 is a wasteful number, since it uses less digits than its factorization.

394986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65836.

The product of its digits is 46656, while the sum is 39.

The square root of 394986 is about 628.4791165982. The cubic root of 394986 is about 73.3714723560.

The spelling of 394986 in words is "three hundred ninety-four thousand, nine hundred eighty-six".