28195116 has 24 divisors (see below), whose sum is σ = 66124800. Its totient is φ = 9350352.

The previous prime is 28195093. The next prime is 28195127. The reversal of 28195116 is 61159182.

28195116 = 273² + 274² + ... + 471².

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, 3516 + ... + 8291.

It is an arithmetic number, because the mean of its divisors is an integer number (2755200).

Almost surely, 2^28195116 is an apocalyptic number.

It is an amenable number.

28195116 is an abundant number, since it is smaller than the sum of its proper divisors (37929684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28195116 is a wasteful number, since it uses less digits than its factorization.

28195116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013 (or 12011 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 28195116 is about 5309.9073438244. The cubic root of 28195116 is about 304.3626069047.

The spelling of 28195116 in words is "twenty-eight million, one hundred ninety-five thousand, one hundred sixteen".