2689543 has 2 divisors, whose sum is σ = 2689544. Its totient is φ = 2689542.

The previous prime is 2689537. The next prime is 2689549. The reversal of 2689543 is 3459862.

It is a balanced prime because it is at equal distance from previous prime (2689537) and next prime (2689549).

It is a cyclic number.

It is not a de Polignac number, because 2689543 - 2⁹ = 2689031 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 6⁵ + 8³ + 9² + 5⁹ + 4⁸ + 3¹² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2689549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344771 + 1344772.

It is an arithmetic number, because the mean of its divisors is an integer number (1344772).

2^2689543 is an apocalyptic number.

2689543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689543 is an equidigital number, since it uses as much as digits as its factorization.

2689543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 2689543 is about 1639.9826218591. The cubic root of 2689543 is about 139.0676654143.

The spelling of 2689543 in words is "two million, six hundred eighty-nine thousand, five hundred forty-three".