489773 has 4 divisors (see below), whose sum is σ = 499068. Its totient is φ = 480480.

The previous prime is 489761. The next prime is 489791. The reversal of 489773 is 377984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438244 + 51529 = 662^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 489773 - 2¹⁰ = 488749 is a prime.

It is a Duffinian 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (124767).

2⁴⁸⁹⁷⁷³ is an apocalyptic number.

It is an amenable number.

489773 is a deficient number, since it is larger than the sum of its proper divisors (9295).

489773 is an equidigital number, since it uses as much as digits as its factorization.

489773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294.

The product of its digits is 42336, while the sum is 38.

The square root of 489773 is about 699.8378383597. The cubic root of 489773 is about 78.8251755473.

The spelling of 489773 in words is "four hundred eighty-nine thousand, seven hundred seventy-three".