491286 has 16 divisors (see below), whose sum is σ = 1009584. Its totient is φ = 159264.

The previous prime is 491279. The next prime is 491297. The reversal of 491286 is 682194.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 885 + ... + 1328.

It is an arithmetic number, because the mean of its divisors is an integer number (63099).

2⁴⁹¹²⁸⁶ is an apocalyptic number.

491286 is an abundant number, since it is smaller than the sum of its proper divisors (518298).

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

491286 is a wasteful number, since it uses less digits than its factorization.

491286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255.

The product of its digits is 3456, while the sum is 30.

The square root of 491286 is about 700.9179695228. The cubic root of 491286 is about 78.9062606575.

It can be divided in two parts, 491 and 286, that added together give a palindrome (777).

The spelling of 491286 in words is "four hundred ninety-one thousand, two hundred eighty-six".