28935285 has 16 divisors (see below), whose sum is σ = 46451904. Its totient is φ = 15380352.

The previous prime is 28935253. The next prime is 28935323. The reversal of 28935285 is 58253982.

It is not a de Polignac number, because 28935285 - 2⁵ = 28935253 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1614 + ... + 7776.

It is an arithmetic number, because the mean of its divisors is an integer number (2903244).

Almost surely, 2^28935285 is an apocalyptic number.

It is an amenable number.

28935285 is a deficient number, since it is larger than the sum of its proper divisors (17516619).

28935285 is a wasteful number, since it uses less digits than its factorization.

28935285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484.

The product of its digits is 172800, while the sum is 42.

The square root of 28935285 is about 5379.1528143380. The cubic root of 28935285 is about 307.0029778984.

The spelling of 28935285 in words is "twenty-eight million, nine hundred thirty-five thousand, two hundred eighty-five".