28459543 has 6 divisors (see below), whose sum is σ = 33106056. Its totient is φ = 24393852.

The previous prime is 28459531. The next prime is 28459553. The reversal of 28459543 is 34595482.

It is a de Polignac number, because none of the positive numbers 2^k-28459543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28459496 and 28459505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28459553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290355 + ... + 290452.

It is an arithmetic number, because the mean of its divisors is an integer number (5517676).

Almost surely, 2^28459543 is an apocalyptic number.

28459543 is a deficient number, since it is larger than the sum of its proper divisors (4646513).

28459543 is an equidigital number, since it uses as much as digits as its factorization.

28459543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580821 (or 580814 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 28459543 is about 5334.7486351280. The cubic root of 28459543 is about 305.3111328301.

The spelling of 28459543 in words is "twenty-eight million, four hundred fifty-nine thousand, five hundred forty-three".