2028559 has 16 divisors (see below), whose sum is σ = 2364768. Its totient is φ = 1723392.

The previous prime is 2028527. The next prime is 2028581. The reversal of 2028559 is 9558202.

It is a happy number.

It is not a de Polignac number, because 2028559 - 2⁵ = 2028527 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 0 + 2¹⁵ + 8⁴ + 5⁶ + 5⁹ + 9⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2028559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028589) 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 in 15 ways as a sum of consecutive naturals, for example, 14739 + ... + 14875.

It is an arithmetic number, because the mean of its divisors is an integer number (147798).

2^2028559 is an apocalyptic number.

2028559 is a deficient number, since it is larger than the sum of its proper divisors (336209).

2028559 is a wasteful number, since it uses less digits than its factorization.

2028559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2028559 is about 1424.2749032402. The cubic root of 2028559 is about 126.5889743631.

The spelling of 2028559 in words is "two million, twenty-eight thousand, five hundred fifty-nine".