499866 has 8 divisors (see below), whose sum is σ = 999744. Its totient is φ = 166620.

The previous prime is 499853. The next prime is 499879. The reversal of 499866 is 668994.

499866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (499853) and next prime (499879).

It is a sphenic number, since it is the product of 3 distinct primes.

499866 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 499866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41650 + ... + 41661.

It is an arithmetic number, because the mean of its divisors is an integer number (124968).

2⁴⁹⁹⁸⁶⁶ is an apocalyptic number.

499866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

499866 is a wasteful number, since it uses less digits than its factorization.

499866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83316.

The product of its digits is 93312, while the sum is 42.

The square root of 499866 is about 707.0120225286. The cubic root of 499866 is about 79.3629615735.

The spelling of 499866 in words is "four hundred ninety-nine thousand, eight hundred sixty-six".