498810909 has 4 divisors (see below), whose sum is σ = 665081216. Its totient is φ = 332540604.

The previous prime is 498810899. The next prime is 498810929. The reversal of 498810909 is 909018894.

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 not a de Polignac number, because 498810909 - 2⁵ = 498810877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498810929) 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, 83135149 + ... + 83135154.

It is an arithmetic number, because the mean of its divisors is an integer number (166270304).

Almost surely, 2^498810909 is an apocalyptic number.

It is an amenable number.

498810909 is a deficient number, since it is larger than the sum of its proper divisors (166270307).

498810909 is a wasteful number, since it uses less digits than its factorization.

498810909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166270306.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 498810909 is about 22334.0750647973. The cubic root of 498810909 is about 793.0708384480.

The spelling of 498810909 in words is "four hundred ninety-eight million, eight hundred ten thousand, nine hundred nine".