499009 has 4 divisors (see below), whose sum is σ = 570304. Its totient is φ = 427716.

The previous prime is 498989. The next prime is 499021. The reversal of 499009 is 900994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499009 - 2⁵ = 498977 is a prime.

499009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (499039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35637 + ... + 35650.

It is an arithmetic number, because the mean of its divisors is an integer number (142576).

2⁴⁹⁹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

499009 is a deficient number, since it is larger than the sum of its proper divisors (71295).

499009 is an equidigital number, since it uses as much as digits as its factorization.

499009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71294.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 499009 is about 706.4056908038. The cubic root of 499009 is about 79.3175807687.

The spelling of 499009 in words is "four hundred ninety-nine thousand, nine".