500320393 has 2 divisors, whose sum is σ = 500320394. Its totient is φ = 500320392.

The previous prime is 500320391. The next prime is 500320399. The reversal of 500320393 is 393023005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498762889 + 1557504 = 22333^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 500320393 - 2¹ = 500320391 is a prime.

Together with 500320391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (500320391) 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, 250160196 + 250160197.

It is an arithmetic number, because the mean of its divisors is an integer number (250160197).

Almost surely, 2^500320393 is an apocalyptic number.

It is an amenable number.

500320393 is a deficient number, since it is larger than the sum of its proper divisors (1).

500320393 is an equidigital number, since it uses as much as digits as its factorization.

500320393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 25.

The square root of 500320393 is about 22367.8428329600. The cubic root of 500320393 is about 793.8700205144.

Adding to 500320393 its reverse (393023005), we get a palindrome (893343398).

The spelling of 500320393 in words is "five hundred million, three hundred twenty thousand, three hundred ninety-three".