517234427 has 2 divisors, whose sum is σ = 517234428. Its totient is φ = 517234426.

The previous prime is 517234391. The next prime is 517234453. The reversal of 517234427 is 724432715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 517234427 - 2¹⁶ = 517168891 is a prime.

It is not a weakly prime, because it can be changed into another prime (517234477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258617213 + 258617214.

It is an arithmetic number, because the mean of its divisors is an integer number (258617214).

Almost surely, 2^517234427 is an apocalyptic number.

517234427 is a deficient number, since it is larger than the sum of its proper divisors (1).

517234427 is an equidigital number, since it uses as much as digits as its factorization.

517234427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 35.

The square root of 517234427 is about 22742.7884614002. The cubic root of 517234427 is about 802.7170258291.

The spelling of 517234427 in words is "five hundred seventeen million, two hundred thirty-four thousand, four hundred twenty-seven".