489729 has 4 divisors (see below), whose sum is σ = 652976. Its totient is φ = 326484.

The previous prime is 489691. The next prime is 489733. The reversal of 489729 is 927984.

489729 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 489729 - 2⁹ = 489217 is a prime.

It is a D-number.

It is a Duffinian number.

489729 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (489799) 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, 81619 + ... + 81624.

It is an arithmetic number, because the mean of its divisors is an integer number (163244).

2⁴⁸⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

489729 is a deficient number, since it is larger than the sum of its proper divisors (163247).

489729 is a wasteful number, since it uses less digits than its factorization.

489729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163246.

The product of its digits is 36288, while the sum is 39.

The square root of 489729 is about 699.8064017998. The cubic root of 489729 is about 78.8228149901.

The spelling of 489729 in words is "four hundred eighty-nine thousand, seven hundred twenty-nine".