543871 has 2 divisors, whose sum is σ = 543872. Its totient is φ = 543870.

The previous prime is 543859. The next prime is 543877. The reversal of 543871 is 178345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543871 - 2⁹ = 543359 is a prime.

543871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271935 + 271936.

It is an arithmetic number, because the mean of its divisors is an integer number (271936).

2⁵⁴³⁸⁷¹ is an apocalyptic number.

543871 is a deficient number, since it is larger than the sum of its proper divisors (1).

543871 is an equidigital number, since it uses as much as digits as its factorization.

543871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 543871 is about 737.4761013077. The cubic root of 543871 is about 81.6266489117.

The spelling of 543871 in words is "five hundred forty-three thousand, eight hundred seventy-one".