495999 has 12 divisors (see below), whose sum is σ = 818896. Its totient is φ = 283392.

The previous prime is 495983. The next prime is 496007. The reversal of 495999 is 999594.

It is a happy number.

It is not a de Polignac number, because 495999 - 2⁴ = 495983 is a prime.

It is a Duffinian number.

495999 is a modest number, since divided by 999 gives 495 as remainder.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 495999.

It is not an unprimeable number, because it can be changed into a prime (495959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3874 + ... + 3999.

2⁴⁹⁵⁹⁹⁹ is an apocalyptic number.

495999 is a deficient number, since it is larger than the sum of its proper divisors (322897).

495999 is a wasteful number, since it uses less digits than its factorization.

495999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886 (or 7883 counting only the distinct ones).

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

The square root of 495999 is about 704.2719645137. The cubic root of 495999 is about 79.1577789961.

The spelling of 495999 in words is "four hundred ninety-five thousand, nine hundred ninety-nine".