543971 has 2 divisors, whose sum is σ = 543972. Its totient is φ = 543970.

The previous prime is 543967. The next prime is 543997. The reversal of 543971 is 179345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 543971 - 2² = 543967 is a prime.

It is not a weakly prime, because it can be changed into another prime (543901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271985 + 271986.

It is an arithmetic number, because the mean of its divisors is an integer number (271986).

2⁵⁴³⁹⁷¹ is an apocalyptic number.

543971 is a deficient number, since it is larger than the sum of its proper divisors (1).

543971 is an equidigital number, since it uses as much as digits as its factorization.

543971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 543971 is about 737.5438969987. The cubic root of 543971 is about 81.6316514244.

The spelling of 543971 in words is "five hundred forty-three thousand, nine hundred seventy-one".