489723 has 16 divisors (see below), whose sum is σ = 729120. Its totient is φ = 290304.

The previous prime is 489691. The next prime is 489733. The reversal of 489723 is 327984.

489723 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 489723 - 2⁵ = 489691 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁹ + 8⁵ + 7⁵ + 9³ + 2⁷ + 3¹¹ .

489723 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489723.

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 15 ways as a sum of consecutive naturals, for example, 915 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (45570).

2⁴⁸⁹⁷²³ is an apocalyptic number.

489723 is a deficient number, since it is larger than the sum of its proper divisors (239397).

489723 is a wasteful number, since it uses less digits than its factorization.

489723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478.

The product of its digits is 12096, while the sum is 33.

The square root of 489723 is about 699.8021148868. The cubic root of 489723 is about 78.8224930850.

The spelling of 489723 in words is "four hundred eighty-nine thousand, seven hundred twenty-three".