28283535 has 72 divisors (see below), whose sum is σ = 58046976. Its totient is φ = 12700800.

The previous prime is 28283509. The next prime is 28283539. The reversal of 28283535 is 53538282.

It is not a de Polignac number, because 28283535 - 2⁷ = 28283407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28283535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28283539) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 222642 + ... + 222768.

It is an arithmetic number, because the mean of its divisors is an integer number (806208).

Almost surely, 2^28283535 is an apocalyptic number.

28283535 is an abundant number, since it is smaller than the sum of its proper divisors (29763441).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28283535 is a wasteful number, since it uses less digits than its factorization.

28283535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 28283535 is about 5318.2266781325. The cubic root of 28283535 is about 304.6804321043.

The spelling of 28283535 in words is "twenty-eight million, two hundred eighty-three thousand, five hundred thirty-five".