28868112 has 120 divisors (see below), whose sum is σ = 99479744. Its totient is φ = 7610112.

The previous prime is 28868107. The next prime is 28868117. The reversal of 28868112 is 21186882.

It is an interprime number because it is at equal distance from previous prime (28868107) and next prime (28868117).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28868117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12003 + ... + 14205.

Almost surely, 2^28868112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28868112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49739872).

28868112 is an abundant number, since it is smaller than the sum of its proper divisors (70611632).

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

28868112 is a wasteful number, since it uses less digits than its factorization.

28868112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2228 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 28868112 is about 5372.9053593005. The cubic root of 28868112 is about 306.7652256198.

The spelling of 28868112 in words is "twenty-eight million, eight hundred sixty-eight thousand, one hundred twelve".