28103116 has 24 divisors (see below), whose sum is σ = 50354640. Its totient is φ = 13719552.

The previous prime is 28103111. The next prime is 28103177. The reversal of 28103116 is 61130182.

It is not an unprimeable number, because it can be changed into a prime (28103111) by changing a digit.

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, 45240 + ... + 45856.

It is an arithmetic number, because the mean of its divisors is an integer number (2098110).

Almost surely, 2^28103116 is an apocalyptic number.

It is an amenable number.

28103116 is a deficient number, since it is larger than the sum of its proper divisors (22251524).

28103116 is a wasteful number, since it uses less digits than its factorization.

28103116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 28103116 is about 5301.2372140850. The cubic root of 28103116 is about 304.0312035145.

Adding to 28103116 its reverse (61130182), we get a palindrome (89233298).

The spelling of 28103116 in words is "twenty-eight million, one hundred three thousand, one hundred sixteen".