499005 has 24 divisors (see below), whose sum is σ = 932568. Its totient is φ = 245376.

The previous prime is 498989. The next prime is 499021. The reversal of 499005 is 500994.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (498989) and next prime (499021).

It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 488601 = 102^2 + 699^2 .

It is not a de Polignac number, because 499005 - 2⁴ = 498989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499005.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 159 + ... + 1011.

It is an arithmetic number, because the mean of its divisors is an integer number (38857).

2⁴⁹⁹⁰⁰⁵ is an apocalyptic number.

499005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

499005 is a deficient number, since it is larger than the sum of its proper divisors (433563).

499005 is a wasteful number, since it uses less digits than its factorization.

499005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 499005 is about 706.4028595639. The cubic root of 499005 is about 79.3173688345.

Adding to 499005 its reverse (500994), we get a palindrome (999999).

The spelling of 499005 in words is "four hundred ninety-nine thousand, five".