489843 has 12 divisors (see below), whose sum is σ = 727168. Its totient is φ = 317520.

The previous prime is 489833. The next prime is 489847. The reversal of 489843 is 348984.

It is not a de Polignac number, because 489843 - 2¹³ = 481651 is a prime.

It is a Duffinian number.

It is a plaindrome in base 5.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 489798 and 489807.

It is not an unprimeable number, because it can be changed into a prime (489847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403 + ... + 1068.

2⁴⁸⁹⁸⁴³ is an apocalyptic number.

489843 is a deficient number, since it is larger than the sum of its proper divisors (237325).

489843 is a wasteful number, since it uses less digits than its factorization.

489843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1511 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 489843 is about 699.8878481585. The cubic root of 489843 is about 78.8289306879.

The spelling of 489843 in words is "four hundred eighty-nine thousand, eight hundred forty-three".