489873 has 8 divisors (see below), whose sum is σ = 656608. Its totient is φ = 324864.

The previous prime is 489871. The next prime is 489887. The reversal of 489873 is 378984.

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

It is not a de Polignac number, because 489873 - 2¹ = 489871 is a prime.

It is a super-2 number, since 2×489873² = 479951112258, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

489873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (489871) 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, 561 + ... + 1137.

It is an arithmetic number, because the mean of its divisors is an integer number (82076).

2⁴⁸⁹⁸⁷³ is an apocalyptic number.

It is an amenable number.

489873 is a deficient number, since it is larger than the sum of its proper divisors (166735).

489873 is a wasteful number, since it uses less digits than its factorization.

489873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

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

The square root of 489873 is about 699.9092798356. The cubic root of 489873 is about 78.8305399244.

Subtracting from 489873 its reverse (378984), we obtain a square (110889 = 333²).

The spelling of 489873 in words is "four hundred eighty-nine thousand, eight hundred seventy-three".