491886 has 16 divisors (see below), whose sum is σ = 1093200. Its totient is φ = 163944.

The previous prime is 491873. The next prime is 491899. The reversal of 491886 is 688194.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (491873) and next prime (491899).

It is a self number, because there is not a number n which added to its sum of digits gives 491886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4501 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (68325).

2⁴⁹¹⁸⁸⁶ is an apocalyptic number.

491886 is an abundant number, since it is smaller than the sum of its proper divisors (601314).

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

491886 is a wasteful number, since it uses less digits than its factorization.

491886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120 (or 9114 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 491886 is about 701.3458490645. The cubic root of 491886 is about 78.9383699217.

It can be divided in two parts, 49188 and 6, that added together give a palindrome (49194).

The spelling of 491886 in words is "four hundred ninety-one thousand, eight hundred eighty-six".