389860 has 24 divisors (see below), whose sum is σ = 831096. Its totient is φ = 153600.

The previous prime is 389849. The next prime is 389867. The reversal of 389860 is 68983.

389860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 306916 = 288^2 + 554^2 .

It is not an unprimeable number, because it can be changed into a prime (389867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924 + ... + 2116.

It is an arithmetic number, because the mean of its divisors is an integer number (34629).

2³⁸⁹⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

389860 is an abundant number, since it is smaller than the sum of its proper divisors (441236).

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

389860 is a wasteful number, since it uses less digits than its factorization.

389860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 389860 is about 624.3877000710. The cubic root of 389860 is about 73.0526923003.

The spelling of 389860 in words is "three hundred eighty-nine thousand, eight hundred sixty".