389684 has 12 divisors (see below), whose sum is σ = 700644. Its totient is φ = 189504.

The previous prime is 389663. The next prime is 389687. The reversal of 389684 is 486983.

It can be written as a sum of positive squares in 2 ways, for example, as 211600 + 178084 = 460^2 + 422^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169 + ... + 1464.

It is an arithmetic number, because the mean of its divisors is an integer number (58387).

2³⁸⁹⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

389684 is a deficient number, since it is larger than the sum of its proper divisors (310960).

389684 is a wasteful number, since it uses less digits than its factorization.

389684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674 (or 2672 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 389684 is about 624.2467460868. The cubic root of 389684 is about 73.0416975765.

The spelling of 389684 in words is "three hundred eighty-nine thousand, six hundred eighty-four".