489686 has 4 divisors (see below), whose sum is σ = 734532. Its totient is φ = 244842.

The previous prime is 489679. The next prime is 489689. The reversal of 489686 is 686984.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

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 489686.

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

489686 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122420 + ... + 122423.

It is an arithmetic number, because the mean of its divisors is an integer number (183633).

2⁴⁸⁹⁶⁸⁶ is an apocalyptic number.

489686 is a deficient number, since it is larger than the sum of its proper divisors (244846).

489686 is a wasteful number, since it uses less digits than its factorization.

489686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244845.

The product of its digits is 82944, while the sum is 41.

The square root of 489686 is about 699.7756783427. The cubic root of 489686 is about 78.8205079453.

The spelling of 489686 in words is "four hundred eighty-nine thousand, six hundred eighty-six".