489756 has 12 divisors (see below), whose sum is σ = 1142792. Its totient is φ = 163248.

The previous prime is 489743. The next prime is 489761. The reversal of 489756 is 657984.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489756.

It is an unprimeable number.

489756 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 20395 + ... + 20418.

2⁴⁸⁹⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

489756 is an abundant number, since it is smaller than the sum of its proper divisors (653036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489756 is a wasteful number, since it uses less digits than its factorization.

489756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40820 (or 40818 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 489756 is about 699.8256925835. The cubic root of 489756 is about 78.8242635306.

The spelling of 489756 in words is "four hundred eighty-nine thousand, seven hundred fifty-six".