489685 has 16 divisors (see below), whose sum is σ = 711936. Its totient is φ = 315648.

The previous prime is 489679. The next prime is 489689. The reversal of 489685 is 586984.

489685 = T₆₂ + T₆₃ + ... + T₁₄₆.

It is a cyclic number.

It is not a de Polignac number, because 489685 - 2³ = 489677 is a prime.

It is a Duffinian 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (44496).

2⁴⁸⁹⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

489685 is a deficient number, since it is larger than the sum of its proper divisors (222251).

489685 is a wasteful number, since it uses less digits than its factorization.

489685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its digits is 69120, while the sum is 40.

The square root of 489685 is about 699.7749638277. The cubic root of 489685 is about 78.8204542915.

The spelling of 489685 in words is "four hundred eighty-nine thousand, six hundred eighty-five".