28014559 has 2 divisors, whose sum is σ = 28014560. Its totient is φ = 28014558.

The previous prime is 28014523. The next prime is 28014583. The reversal of 28014559 is 95541082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28014559 - 2⁹ = 28014047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28014599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14007279 + 14007280.

It is an arithmetic number, because the mean of its divisors is an integer number (14007280).

Almost surely, 2^28014559 is an apocalyptic number.

28014559 is a deficient number, since it is larger than the sum of its proper divisors (1).

28014559 is an equidigital number, since it uses as much as digits as its factorization.

28014559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 28014559 is about 5292.8781395381. The cubic root of 28014559 is about 303.7115186620.

It can be divided in two parts, 2 and 8014559, that added together give a square (8014561 = 2831²).

The spelling of 28014559 in words is "twenty-eight million, fourteen thousand, five hundred fifty-nine".