504974321 has 2 divisors, whose sum is σ = 504974322. Its totient is φ = 504974320.

The previous prime is 504974311. The next prime is 504974339. The reversal of 504974321 is 123479405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503374096 + 1600225 = 22436^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 504974321 - 2¹⁰ = 504973297 is a prime.

It is a super-2 number, since 2×504974321² = 509998129738822082, which contains 22 as substring.

It is equal to p_26603756 and since 504974321 and 26603756 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (504974311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252487160 + 252487161.

It is an arithmetic number, because the mean of its divisors is an integer number (252487161).

Almost surely, 2^504974321 is an apocalyptic number.

It is an amenable number.

504974321 is a deficient number, since it is larger than the sum of its proper divisors (1).

504974321 is an equidigital number, since it uses as much as digits as its factorization.

504974321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 504974321 is about 22471.6336967298. The cubic root of 504974321 is about 796.3239261622.

The spelling of 504974321 in words is "five hundred four million, nine hundred seventy-four thousand, three hundred twenty-one".