504397169 has 4 divisors (see below), whose sum is σ = 504927396. Its totient is φ = 503866944.

The previous prime is 504397163. The next prime is 504397177. The reversal of 504397169 is 961793405.

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 90478144 + 413919025 = 9512^2 + 20345^2 .

It is a cyclic number.

It is not a de Polignac number, because 504397169 - 2²⁴ = 487619953 is a prime.

It is a super-2 number, since 2×504397169² = 508833008190429122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504397163) 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, 263684 + ... + 265589.

It is an arithmetic number, because the mean of its divisors is an integer number (126231849).

Almost surely, 2^504397169 is an apocalyptic number.

It is an amenable number.

504397169 is a deficient number, since it is larger than the sum of its proper divisors (530227).

504397169 is an equidigital number, since it uses as much as digits as its factorization.

504397169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530226.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 504397169 is about 22458.7882353434. The cubic root of 504397169 is about 796.0204287788.

The spelling of 504397169 in words is "five hundred four million, three hundred ninety-seven thousand, one hundred sixty-nine".