28683285 has 16 divisors (see below), whose sum is σ = 45960000. Its totient is φ = 15275520.

The previous prime is 28683283. The next prime is 28683289. The reversal of 28683285 is 58238682.

It is not a de Polignac number, because 28683285 - 2¹ = 28683283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28683283) 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, 17970 + ... + 19500.

It is an arithmetic number, because the mean of its divisors is an integer number (2872500).

Almost surely, 2^28683285 is an apocalyptic number.

It is an amenable number.

28683285 is a deficient number, since it is larger than the sum of its proper divisors (17276715).

28683285 is a wasteful number, since it uses less digits than its factorization.

28683285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788.

The product of its digits is 184320, while the sum is 42.

The square root of 28683285 is about 5355.6778282492. The cubic root of 28683285 is about 306.1091391633.

The spelling of 28683285 in words is "twenty-eight million, six hundred eighty-three thousand, two hundred eighty-five".