389489 has 4 divisors (see below), whose sum is σ = 397824. Its totient is φ = 381156.

The previous prime is 389483. The next prime is 389507. The reversal of 389489 is 984983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984983 = 71 ⋅13873.

It is a cyclic number.

It is not a de Polignac number, because 389489 - 2¹² = 385393 is a prime.

It is a super-2 number, since 2×389489² = 303403362242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389483) 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, 4097 + ... + 4190.

It is an arithmetic number, because the mean of its divisors is an integer number (99456).

2³⁸⁹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

389489 is a deficient number, since it is larger than the sum of its proper divisors (8335).

389489 is an equidigital number, since it uses as much as digits as its factorization.

389489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334.

The product of its digits is 62208, while the sum is 41.

The square root of 389489 is about 624.0905383035. The cubic root of 389489 is about 73.0295120557.

It can be divided in two parts, 389 and 489, that added together give a palindrome (878).

The spelling of 389489 in words is "three hundred eighty-nine thousand, four hundred eighty-nine".