28544743 has 2 divisors, whose sum is σ = 28544744. Its totient is φ = 28544742.

The previous prime is 28544693. The next prime is 28544749. The reversal of 28544743 is 34744582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28544743 - 2⁹ = 28544231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28544749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14272371 + 14272372.

It is an arithmetic number, because the mean of its divisors is an integer number (14272372).

Almost surely, 2^28544743 is an apocalyptic number.

28544743 is a deficient number, since it is larger than the sum of its proper divisors (1).

28544743 is an equidigital number, since it uses as much as digits as its factorization.

28544743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 37.

The square root of 28544743 is about 5342.7280484786. The cubic root of 28544743 is about 305.6155016613.

The spelling of 28544743 in words is "twenty-eight million, five hundred forty-four thousand, seven hundred forty-three".