504704681 has 4 divisors (see below), whose sum is σ = 543528132. Its totient is φ = 465881232.

The previous prime is 504704647. The next prime is 504704689. The reversal of 504704681 is 186407405.

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 33120025 + 471584656 = 5755^2 + 21716^2 .

It is a cyclic number.

It is not a de Polignac number, because 504704681 - 2¹⁰ = 504703657 is a prime.

It is a super-2 number, since 2×504704681² = 509453630046623522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504704689) 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, 19411706 + ... + 19411731.

It is an arithmetic number, because the mean of its divisors is an integer number (135882033).

Almost surely, 2^504704681 is an apocalyptic number.

It is an amenable number.

504704681 is a deficient number, since it is larger than the sum of its proper divisors (38823451).

504704681 is a wasteful number, since it uses less digits than its factorization.

504704681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38823450.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 504704681 is about 22465.6333318249. The cubic root of 504704681 is about 796.1821638297.

The spelling of 504704681 in words is "five hundred four million, seven hundred four thousand, six hundred eighty-one".