498937009 has 4 divisors (see below), whose sum is σ = 499048804. Its totient is φ = 498825216.

The previous prime is 498936983. The next prime is 498937013. The reversal of 498937009 is 900739894.

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 239630400 + 259306609 = 15480^2 + 16103^2 .

It is a cyclic number.

It is not a de Polignac number, because 498937009 - 2⁷ = 498936881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498937039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48912 + ... + 58225.

It is an arithmetic number, because the mean of its divisors is an integer number (124762201).

Almost surely, 2^498937009 is an apocalyptic number.

It is an amenable number.

498937009 is a deficient number, since it is larger than the sum of its proper divisors (111795).

498937009 is a wasteful number, since it uses less digits than its factorization.

498937009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111794.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 498937009 is about 22336.8979269728. The cubic root of 498937009 is about 793.1376625724.

The spelling of 498937009 in words is "four hundred ninety-eight million, nine hundred thirty-seven thousand, nine".