499818499 has 4 divisors (see below), whose sum is σ = 500591664. Its totient is φ = 499045336.

The previous prime is 499818457. The next prime is 499818511. The reversal of 499818499 is 994818994.

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

It is a cyclic number.

It is not a de Polignac number, because 499818499 - 2²¹ = 497721347 is a prime.

It is a super-2 number, since 2×499818499² = 499637063885226002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499818419) 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, 385612 + ... + 386905.

It is an arithmetic number, because the mean of its divisors is an integer number (125147916).

Almost surely, 2^499818499 is an apocalyptic number.

499818499 is a deficient number, since it is larger than the sum of its proper divisors (773165).

499818499 is an equidigital number, since it uses as much as digits as its factorization.

499818499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773164.

The product of its digits is 6718464, while the sum is 61.

The square root of 499818499 is about 22356.6209208816. The cubic root of 499818499 is about 793.6044760683.

The spelling of 499818499 in words is "four hundred ninety-nine million, eight hundred eighteen thousand, four hundred ninety-nine".