489687 has 24 divisors (see below), whose sum is σ = 766080. Its totient is φ = 277200.

The previous prime is 489679. The next prime is 489689. The reversal of 489687 is 786984.

It is a happy number.

It is not a de Polignac number, because 489687 - 2³ = 489679 is a prime.

It is an Ulam number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6862 + ... + 6932.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2⁴⁸⁹⁶⁸⁷ is an apocalyptic number.

489687 is a deficient number, since it is larger than the sum of its proper divisors (276393).

489687 is a wasteful number, since it uses less digits than its factorization.

489687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 104 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 489687 is about 699.7763928570. The cubic root of 489687 is about 78.8205615990.

It can be divided in two parts, 489 and 687, that added together give a triangular number (1176 = T₄₈).

The spelling of 489687 in words is "four hundred eighty-nine thousand, six hundred eighty-seven".