517234493 has 2 divisors, whose sum is σ = 517234494. Its totient is φ = 517234492.

The previous prime is 517234489. The next prime is 517234499. The reversal of 517234493 is 394432715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401521444 + 115713049 = 20038^2 + 10757^2 .

It is a cyclic number.

It is not a de Polignac number, because 517234493 - 2² = 517234489 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517234499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258617246 + 258617247.

It is an arithmetic number, because the mean of its divisors is an integer number (258617247).

Almost surely, 2^517234493 is an apocalyptic number.

It is an amenable number.

517234493 is a deficient number, since it is larger than the sum of its proper divisors (1).

517234493 is an equidigital number, since it uses as much as digits as its factorization.

517234493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 517234493 is about 22742.7899124096. The cubic root of 517234493 is about 802.7170599718.

The spelling of 517234493 in words is "five hundred seventeen million, two hundred thirty-four thousand, four hundred ninety-three".