543442217 has 2 divisors, whose sum is σ = 543442218. Its totient is φ = 543442216.

The previous prime is 543442201. The next prime is 543442219. The reversal of 543442217 is 712244345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510940816 + 32501401 = 22604^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 543442217 - 2⁴ = 543442201 is a prime.

Together with 543442219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (543442219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271721108 + 271721109.

It is an arithmetic number, because the mean of its divisors is an integer number (271721109).

Almost surely, 2^543442217 is an apocalyptic number.

It is an amenable number.

543442217 is a deficient number, since it is larger than the sum of its proper divisors (1).

543442217 is an equidigital number, since it uses as much as digits as its factorization.

543442217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 32.

The square root of 543442217 is about 23311.8471383115. The cubic root of 543442217 is about 816.0519203355.

The spelling of 543442217 in words is "five hundred forty-three million, four hundred forty-two thousand, two hundred seventeen".