389433 has 8 divisors (see below), whose sum is σ = 566496. Its totient is φ = 236000.

The previous prime is 389401. The next prime is 389437. The reversal of 389433 is 334983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389433 - 2⁵ = 389401 is a prime.

It is a super-2 number, since 2×389433² = 303316122978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389433.

It is not an unprimeable number, because it can be changed into a prime (389437) 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 7 ways as a sum of consecutive naturals, for example, 5868 + ... + 5933.

It is an arithmetic number, because the mean of its divisors is an integer number (70812).

2³⁸⁹⁴³³ is an apocalyptic number.

389433 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

389433 is a deficient number, since it is larger than the sum of its proper divisors (177063).

389433 is a wasteful number, since it uses less digits than its factorization.

389433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11815.

The product of its digits is 7776, while the sum is 30.

The square root of 389433 is about 624.0456714055. The cubic root of 389433 is about 73.0260118723.

Subtracting from 389433 its sum of digits (30), we obtain a triangular number (389403 = T₈₈₂).

The spelling of 389433 in words is "three hundred eighty-nine thousand, four hundred thirty-three".