389239 has 4 divisors (see below), whose sum is σ = 392920. Its totient is φ = 385560.

The previous prime is 389231. The next prime is 389269. The reversal of 389239 is 932983.

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 389239 - 2³ = 389231 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 (389231) 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, 1677 + ... + 1894.

It is an arithmetic number, because the mean of its divisors is an integer number (98230).

2³⁸⁹²³⁹ is an apocalyptic number.

389239 is a deficient number, since it is larger than the sum of its proper divisors (3681).

389239 is a wasteful number, since it uses less digits than its factorization.

389239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680.

The product of its digits is 11664, while the sum is 34.

The square root of 389239 is about 623.8902147013. The cubic root of 389239 is about 73.0138836420.

The spelling of 389239 in words is "three hundred eighty-nine thousand, two hundred thirty-nine".