489688 has 8 divisors (see below), whose sum is σ = 918180. Its totient is φ = 244840.

The previous prime is 489679. The next prime is 489689. The reversal of 489688 is 886984.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489689) by changing a digit.

489688 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 as a sum of consecutive naturals, namely, 30598 + ... + 30613.

2⁴⁸⁹⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

489688 is a deficient number, since it is larger than the sum of its proper divisors (428492).

489688 is a wasteful number, since it uses less digits than its factorization.

489688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61217 (or 61213 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 489688 is about 699.7771073706. Note that the first 3 decimals coincide. The cubic root of 489688 is about 78.8206152527.

The spelling of 489688 in words is "four hundred eighty-nine thousand, six hundred eighty-eight".