516323393 has 2 divisors, whose sum is σ = 516323394. Its totient is φ = 516323392.

The previous prime is 516323377. The next prime is 516323477. The reversal of 516323393 is 393323615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351637504 + 164685889 = 18752^2 + 12833^2 .

It is a cyclic number.

It is not a de Polignac number, because 516323393 - 2⁴ = 516323377 is a prime.

It is not a weakly prime, because it can be changed into another prime (516323333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258161696 + 258161697.

It is an arithmetic number, because the mean of its divisors is an integer number (258161697).

Almost surely, 2^516323393 is an apocalyptic number.

It is an amenable number.

516323393 is a deficient number, since it is larger than the sum of its proper divisors (1).

516323393 is an equidigital number, since it uses as much as digits as its factorization.

516323393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 35.

The square root of 516323393 is about 22722.7505597364. The cubic root of 516323393 is about 802.2454586849.

The spelling of 516323393 in words is "five hundred sixteen million, three hundred twenty-three thousand, three hundred ninety-three".