28611112 has 32 divisors (see below), whose sum is σ = 57859200. Its totient is φ = 13219200.

The previous prime is 28611041. The next prime is 28611113. The reversal of 28611112 is 21111682.

It is not an unprimeable number, because it can be changed into a prime (28611113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3937 + ... + 8527.

It is an arithmetic number, because the mean of its divisors is an integer number (1808100).

Almost surely, 2^28611112 is an apocalyptic number.

It is an amenable number.

28611112 is an abundant number, since it is smaller than the sum of its proper divisors (29248088).

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

28611112 is a wasteful number, since it uses less digits than its factorization.

28611112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657 (or 4653 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 28611112 is about 5348.9355950507. The cubic root of 28611112 is about 305.8521791619.

Adding to 28611112 its reverse (21111682), we get a palindrome (49722794).

The spelling of 28611112 in words is "twenty-eight million, six hundred eleven thousand, one hundred twelve".