499959 has 8 divisors (see below), whose sum is σ = 740720. Its totient is φ = 333288.

The previous prime is 499957. The next prime is 499969. The reversal of 499959 is 959994.

It is a happy number.

It is not a de Polignac number, because 499959 - 2¹ = 499957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499957) 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, 9232 + ... + 9285.

It is an arithmetic number, because the mean of its divisors is an integer number (92590).

2⁴⁹⁹⁹⁵⁹ is an apocalyptic number.

499959 is a deficient number, since it is larger than the sum of its proper divisors (240761).

499959 is a wasteful number, since it uses less digits than its factorization.

499959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18526 (or 18520 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 499959 is about 707.0777892142. The cubic root of 499959 is about 79.3678830910.

The spelling of 499959 in words is "four hundred ninety-nine thousand, nine hundred fifty-nine".