517471849 has 2 divisors, whose sum is σ = 517471850. Its totient is φ = 517471848.

The previous prime is 517471837. The next prime is 517471873. The reversal of 517471849 is 948174715.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473845824 + 43626025 = 21768^2 + 6605^2 .

It is a cyclic number.

It is not a de Polignac number, because 517471849 - 2⁹ = 517471337 is a prime.

It is a super-2 number, since 2×517471849² = 535554229014957602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517471799 and 517471808.

It is not a weakly prime, because it can be changed into another prime (517471249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258735924 + 258735925.

It is an arithmetic number, because the mean of its divisors is an integer number (258735925).

Almost surely, 2^517471849 is an apocalyptic number.

It is an amenable number.

517471849 is a deficient number, since it is larger than the sum of its proper divisors (1).

517471849 is an equidigital number, since it uses as much as digits as its factorization.

517471849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 46.

The square root of 517471849 is about 22748.0075830830. The cubic root of 517471849 is about 802.8398286426.

The spelling of 517471849 in words is "five hundred seventeen million, four hundred seventy-one thousand, eight hundred forty-nine".