504098689 has 4 divisors (see below), whose sum is σ = 504165124. Its totient is φ = 504032256.

The previous prime is 504098681. The next prime is 504098701. The reversal of 504098689 is 986890405.

It is a happy number.

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 364504464 + 139594225 = 19092^2 + 11815^2 .

It is a cyclic number.

It is not a de Polignac number, because 504098689 - 2³ = 504098681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504098681) 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, 20112 + ... + 37585.

It is an arithmetic number, because the mean of its divisors is an integer number (126041281).

Almost surely, 2^504098689 is an apocalyptic number.

It is an amenable number.

504098689 is a deficient number, since it is larger than the sum of its proper divisors (66435).

504098689 is an equidigital number, since it uses as much as digits as its factorization.

504098689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66434.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 504098689 is about 22452.1421917821. The cubic root of 504098689 is about 795.8633812021.

The spelling of 504098689 in words is "five hundred four million, ninety-eight thousand, six hundred eighty-nine".