389833 has 4 divisors (see below), whose sum is σ = 391300. Its totient is φ = 388368.

The previous prime is 389819. The next prime is 389839. The reversal of 389833 is 338983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338983 = 257 ⋅1319.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 258064 = 363^2 + 508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389833 is a prime.

It is a Duffinian number.

389833 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389839) 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 3 ways as a sum of consecutive naturals, for example, 210 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (97825).

2³⁸⁹⁸³³ is an apocalyptic number.

It is an amenable number.

389833 is a deficient number, since it is larger than the sum of its proper divisors (1467).

389833 is a wasteful number, since it uses less digits than its factorization.

389833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its digits is 15552, while the sum is 34.

The square root of 389833 is about 624.3660785148. The cubic root of 389833 is about 73.0510058246.

The spelling of 389833 in words is "three hundred eighty-nine thousand, eight hundred thirty-three".