389205 has 30 divisors (see below), whose sum is σ = 720918. Its totient is φ = 200880.

The previous prime is 389189. The next prime is 389219. The reversal of 389205 is 502983.

389205 is digitally balanced in base 7, 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 only one way, i.e., 311364 + 77841 = 558^2 + 279^2 .

It is not a de Polignac number, because 389205 - 2⁴ = 389189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

389205 is strictly pandigital in base 7.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 12540 + ... + 12570.

2³⁸⁹²⁰⁵ is an apocalyptic number.

It is an amenable number.

389205 is a deficient number, since it is larger than the sum of its proper divisors (331713).

389205 is an equidigital number, since it uses as much as digits as its factorization.

389205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 389205 is about 623.8629657224. The cubic root of 389205 is about 73.0117576608.

The spelling of 389205 in words is "three hundred eighty-nine thousand, two hundred five".