28547459 has 2 divisors, whose sum is σ = 28547460. Its totient is φ = 28547458.

The previous prime is 28547447. The next prime is 28547473. The reversal of 28547459 is 95474582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28547459 - 2¹² = 28543363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28547429) 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, 14273729 + 14273730.

It is an arithmetic number, because the mean of its divisors is an integer number (14273730).

Almost surely, 2^28547459 is an apocalyptic number.

28547459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28547459 is an equidigital number, since it uses as much as digits as its factorization.

28547459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 44.

The square root of 28547459 is about 5342.9822196972. The cubic root of 28547459 is about 305.6251943436.

The spelling of 28547459 in words is "twenty-eight million, five hundred forty-seven thousand, four hundred fifty-nine".