28056583 has 2 divisors, whose sum is σ = 28056584. Its totient is φ = 28056582.

The previous prime is 28056569. The next prime is 28056593. The reversal of 28056583 is 38565082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28056583 - 2⁹ = 28056071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056503) 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 as a sum of consecutive naturals, namely, 14028291 + 14028292.

It is an arithmetic number, because the mean of its divisors is an integer number (14028292).

Almost surely, 2^28056583 is an apocalyptic number.

28056583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056583 is an equidigital number, since it uses as much as digits as its factorization.

28056583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28056583 is about 5296.8465146727. The cubic root of 28056583 is about 303.8633063600.

The spelling of 28056583 in words is "twenty-eight million, fifty-six thousand, five hundred eighty-three".