499863 has 16 divisors (see below), whose sum is σ = 820736. Its totient is φ = 263520.

The previous prime is 499853. The next prime is 499879. The reversal of 499863 is 368994.

It is not a de Polignac number, because 499863 - 2⁸ = 499607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

499863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499853) 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, 643 + ... + 1188.

It is an arithmetic number, because the mean of its divisors is an integer number (51296).

2⁴⁹⁹⁸⁶³ is an apocalyptic number.

499863 is a deficient number, since it is larger than the sum of its proper divisors (320873).

499863 is a wasteful number, since it uses less digits than its factorization.

499863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854.

The product of its digits is 46656, while the sum is 39.

The square root of 499863 is about 707.0099009208. The cubic root of 499863 is about 79.3628028048.

The spelling of 499863 in words is "four hundred ninety-nine thousand, eight hundred sixty-three".