28275835 has 16 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 19338336.

The previous prime is 28275833. The next prime is 28275839. The reversal of 28275835 is 53857282.

It is a cyclic number.

It is not a de Polignac number, because 28275835 - 2¹ = 28275833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28275833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16656 + ... + 18274.

It is an arithmetic number, because the mean of its divisors is an integer number (2430000).

Almost surely, 2^28275835 is an apocalyptic number.

28275835 is a deficient number, since it is larger than the sum of its proper divisors (10604165).

28275835 is a wasteful number, since it uses less digits than its factorization.

28275835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130.

The product of its digits is 134400, while the sum is 40.

The square root of 28275835 is about 5317.5027033373. The cubic root of 28275835 is about 304.6527805365.

The spelling of 28275835 in words is "twenty-eight million, two hundred seventy-five thousand, eight hundred thirty-five".