499966 has 16 divisors (see below), whose sum is σ = 806400. Its totient is φ = 231768.

The previous prime is 499957. The next prime is 499969. The reversal of 499966 is 669994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2⁴⁹⁹⁹⁶⁶ is an apocalyptic number.

499966 is a deficient number, since it is larger than the sum of its proper divisors (306434).

499966 is a wasteful number, since it uses less digits than its factorization.

499966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its digits is 104976, while the sum is 43.

The square root of 499966 is about 707.0827391473. The cubic root of 499966 is about 79.3682535031.

The spelling of 499966 in words is "four hundred ninety-nine thousand, nine hundred sixty-six".