389143 has 4 divisors (see below), whose sum is σ = 401728. Its totient is φ = 376560.

The previous prime is 389141. The next prime is 389149. The reversal of 389143 is 341983.

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 389143 - 2¹ = 389141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389141) 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, 6246 + ... + 6307.

It is an arithmetic number, because the mean of its divisors is an integer number (100432).

2³⁸⁹¹⁴³ is an apocalyptic number.

389143 is a deficient number, since it is larger than the sum of its proper divisors (12585).

389143 is a wasteful number, since it uses less digits than its factorization.

389143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12584.

The product of its digits is 2592, while the sum is 28.

The square root of 389143 is about 623.8132733439. The cubic root of 389143 is about 73.0078805529.

The spelling of 389143 in words is "three hundred eighty-nine thousand, one hundred forty-three".