517471 has 2 divisors, whose sum is σ = 517472. Its totient is φ = 517470.

The previous prime is 517469. The next prime is 517481. The reversal of 517471 is 174715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 517471 - 2¹ = 517469 is a prime.

It is a super-3 number, since 3×517471³ = 415699309610634333, which contains 333 as substring.

Together with 517469, it forms a pair of twin primes.

It is an Ulam number.

517471 is a lucky number.

It is equal to p₄₂₈₆₅ and since 517471 and 42865 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258735 + 258736.

It is an arithmetic number, because the mean of its divisors is an integer number (258736).

2⁵¹⁷⁴⁷¹ is an apocalyptic number.

517471 is a deficient number, since it is larger than the sum of its proper divisors (1).

517471 is an equidigital number, since it uses as much as digits as its factorization.

517471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 980, while the sum is 25.

The square root of 517471 is about 719.3545718212. The cubic root of 517471 is about 80.2839389578.

The spelling of 517471 in words is "five hundred seventeen thousand, four hundred seventy-one".