28817882 has 16 divisors (see below), whose sum is σ = 43872192. Its totient is φ = 14195520.

The previous prime is 28817863. The next prime is 28817917. The reversal of 28817882 is 28871882.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66338 + ... + 66770.

It is an arithmetic number, because the mean of its divisors is an integer number (2742012).

Almost surely, 2^28817882 is an apocalyptic number.

28817882 is a deficient number, since it is larger than the sum of its proper divisors (15054310).

28817882 is a wasteful number, since it uses less digits than its factorization.

28817882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its digits is 114688, while the sum is 44.

The square root of 28817882 is about 5368.2289444471. The cubic root of 28817882 is about 306.5872003192.

The spelling of 28817882 in words is "twenty-eight million, eight hundred seventeen thousand, eight hundred eighty-two".