28303882 has 16 divisors (see below), whose sum is σ = 45361440. Its totient is φ = 13205808.

The previous prime is 28303879. The next prime is 28303897. The reversal of 28303882 is 28830382.

It is a super-3 number, since 3×28303882³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 3013 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (2835090).

Almost surely, 2^28303882 is an apocalyptic number.

28303882 is a deficient number, since it is larger than the sum of its proper divisors (17057558).

28303882 is a wasteful number, since it uses less digits than its factorization.

28303882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28303882 is about 5320.1392838910. The cubic root of 28303882 is about 304.7534763302.

The spelling of 28303882 in words is "twenty-eight million, three hundred three thousand, eight hundred eighty-two".