2089543 has 2 divisors, whose sum is σ = 2089544. Its totient is φ = 2089542.

The previous prime is 2089541. The next prime is 2089559. The reversal of 2089543 is 3459802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2089543 - 2¹ = 2089541 is a prime.

Together with 2089541, it forms a pair of twin primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁷ + 0 + 8³ + 9 + 5⁹ + 4⁶ + 3⁶ .

2089543 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044771 + 1044772.

It is an arithmetic number, because the mean of its divisors is an integer number (1044772).

2^2089543 is an apocalyptic number.

2089543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089543 is an equidigital number, since it uses as much as digits as its factorization.

2089543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2089543 is about 1445.5251640840. The cubic root of 2089543 is about 127.8450068958.

The spelling of 2089543 in words is "two million, eighty-nine thousand, five hundred forty-three".