489783 has 16 divisors (see below), whose sum is σ = 758016. Its totient is φ = 275520.

The previous prime is 489761. The next prime is 489791. The reversal of 489783 is 387984.

It is not a de Polignac number, because 489783 - 2¹⁰ = 488759 is a prime.

489783 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489733) 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 15 ways as a sum of consecutive naturals, for example, 1603 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (47376).

2⁴⁸⁹⁷⁸³ is an apocalyptic number.

489783 is a deficient number, since it is larger than the sum of its proper divisors (268233).

489783 is a wasteful number, since it uses less digits than its factorization.

489783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its digits is 48384, while the sum is 39.

The square root of 489783 is about 699.8449828355. The cubic root of 489783 is about 78.8257120179.

The spelling of 489783 in words is "four hundred eighty-nine thousand, seven hundred eighty-three".