28100116 has 24 divisors (see below), whose sum is σ = 56802816. Its totient is φ = 12021120.

The previous prime is 28100041. The next prime is 28100141. The reversal of 28100116 is 61100182.

It is a junction number, because it is equal to n+sod(n) for n = 28100093 and 28100102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18036 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (2366784).

Almost surely, 2^28100116 is an apocalyptic number.

It is an amenable number.

28100116 is an abundant number, since it is smaller than the sum of its proper divisors (28702700).

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

28100116 is a wasteful number, since it uses less digits than its factorization.

28100116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37599 (or 37597 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 28100116 is about 5300.9542537170. The cubic root of 28100116 is about 304.0203847134.

Adding to 28100116 its reverse (61100182), we get a palindrome (89200298).

The spelling of 28100116 in words is "twenty-eight million, one hundred thousand, one hundred sixteen".