517274893 has 2 divisors, whose sum is σ = 517274894. Its totient is φ = 517274892.

The previous prime is 517274803. The next prime is 517274909. The reversal of 517274893 is 398472715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295771204 + 221503689 = 17198^2 + 14883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-517274893 is a prime.

It is a super-2 number, since 2×517274893² = 535146629856322898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517274803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258637446 + 258637447.

It is an arithmetic number, because the mean of its divisors is an integer number (258637447).

Almost surely, 2^517274893 is an apocalyptic number.

It is an amenable number.

517274893 is a deficient number, since it is larger than the sum of its proper divisors (1).

517274893 is an equidigital number, since it uses as much as digits as its factorization.

517274893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 517274893 is about 22743.6780886470. The cubic root of 517274893 is about 802.7379588905.

The spelling of 517274893 in words is "five hundred seventeen million, two hundred seventy-four thousand, eight hundred ninety-three".