389123 has 4 divisors (see below), whose sum is σ = 444720. Its totient is φ = 333528.

The previous prime is 389117. The next prime is 389141. The reversal of 389123 is 321983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389123 - 2¹⁰ = 388099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389092 and 389101.

It is not an unprimeable number, because it can be changed into a prime (389173) 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, 27788 + ... + 27801.

It is an arithmetic number, because the mean of its divisors is an integer number (111180).

2³⁸⁹¹²³ is an apocalyptic number.

389123 is a deficient number, since it is larger than the sum of its proper divisors (55597).

389123 is an equidigital number, since it uses as much as digits as its factorization.

389123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55596.

The product of its digits is 1296, while the sum is 26.

The square root of 389123 is about 623.7972426999. The cubic root of 389123 is about 73.0066297851.

It can be divided in two parts, 389 and 123, that added together give a 9-th power (512 = 2⁹).

The spelling of 389123 in words is "three hundred eighty-nine thousand, one hundred twenty-three".