499505 has 4 divisors (see below), whose sum is σ = 599412. Its totient is φ = 399600.

The previous prime is 499493. The next prime is 499507. The reversal of 499505 is 505994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 364816 + 134689 = 604^2 + 367^2 .

It is not a de Polignac number, because 499505 - 2¹⁸ = 237361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499507) 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, 49946 + ... + 49955.

It is an arithmetic number, because the mean of its divisors is an integer number (149853).

2⁴⁹⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

499505 is a deficient number, since it is larger than the sum of its proper divisors (99907).

499505 is an equidigital number, since it uses as much as digits as its factorization.

499505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99906.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 499505 is about 706.7566766575. The cubic root of 499505 is about 79.3438518329.

The spelling of 499505 in words is "four hundred ninety-nine thousand, five hundred five".