543859 has 2 divisors, whose sum is σ = 543860. Its totient is φ = 543858.

The previous prime is 543857. The next prime is 543871. The reversal of 543859 is 958345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 543859 - 2¹ = 543857 is a prime.

It is a super-2 number, since 2×543859² = 591565223762, which contains 22 as substring.

Together with 543857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (543853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271929 + 271930.

It is an arithmetic number, because the mean of its divisors is an integer number (271930).

2⁵⁴³⁸⁵⁹ is an apocalyptic number.

543859 is a deficient number, since it is larger than the sum of its proper divisors (1).

543859 is an equidigital number, since it uses as much as digits as its factorization.

543859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 543859 is about 737.4679654060. The cubic root of 543859 is about 81.6260485690.

The spelling of 543859 in words is "five hundred forty-three thousand, eight hundred fifty-nine".