28560589 has 2 divisors, whose sum is σ = 28560590. Its totient is φ = 28560588.

The previous prime is 28560551. The next prime is 28560601. The reversal of 28560589 is 98506582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28249225 + 311364 = 5315^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 28560589 - 2²³ = 20171981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28560989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14280294 + 14280295.

It is an arithmetic number, because the mean of its divisors is an integer number (14280295).

Almost surely, 2^28560589 is an apocalyptic number.

It is an amenable number.

28560589 is a deficient number, since it is larger than the sum of its proper divisors (1).

28560589 is an equidigital number, since it uses as much as digits as its factorization.

28560589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 28560589 is about 5344.2107929983. The cubic root of 28560589 is about 305.6720431570.

The spelling of 28560589 in words is "twenty-eight million, five hundred sixty thousand, five hundred eighty-nine".