506479321 has 2 divisors, whose sum is σ = 506479322. Its totient is φ = 506479320.

The previous prime is 506479313. The next prime is 506479339. The reversal of 506479321 is 123974605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416608921 + 89870400 = 20411^2 + 9480^2 .

It is a cyclic number.

It is not a de Polignac number, because 506479321 - 2³ = 506479313 is a prime.

It is not a weakly prime, because it can be changed into another prime (506479301) 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 as a sum of consecutive naturals, namely, 253239660 + 253239661.

It is an arithmetic number, because the mean of its divisors is an integer number (253239661).

Almost surely, 2^506479321 is an apocalyptic number.

It is an amenable number.

506479321 is a deficient number, since it is larger than the sum of its proper divisors (1).

506479321 is an equidigital number, since it uses as much as digits as its factorization.

506479321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 506479321 is about 22505.0954452542. The cubic root of 506479321 is about 797.1142494250.

The spelling of 506479321 in words is "five hundred six million, four hundred seventy-nine thousand, three hundred twenty-one".