504491017 has 4 divisors (see below), whose sum is σ = 505936900. Its totient is φ = 503045136.

The previous prime is 504491011. The next prime is 504491033. The reversal of 504491017 is 710194405.

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 462293001 + 42198016 = 21501^2 + 6496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504491017 is a prime.

It is a super-2 number, since 2×504491017² = 509022372467388578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504491017.

It is not an unprimeable number, because it can be changed into a prime (504491011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722418 + ... + 723115.

It is an arithmetic number, because the mean of its divisors is an integer number (126484225).

Almost surely, 2^504491017 is an apocalyptic number.

It is an amenable number.

504491017 is a deficient number, since it is larger than the sum of its proper divisors (1445883).

504491017 is a wasteful number, since it uses less digits than its factorization.

504491017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445882.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 504491017 is about 22460.8774761807. The cubic root of 504491017 is about 796.0697948321.

The spelling of 504491017 in words is "five hundred four million, four hundred ninety-one thousand, seventeen".