28112068 has 6 divisors (see below), whose sum is σ = 49196126. Its totient is φ = 14056032.

The previous prime is 28112057. The next prime is 28112069. The reversal of 28112068 is 86021182.

It can be written as a sum of positive squares in only one way, i.e., 28068804 + 43264 = 5298^2 + 208^2 .

It is not an unprimeable number, because it can be changed into a prime (28112069) 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 as a sum of consecutive naturals, namely, 3514005 + ... + 3514012.

Almost surely, 2^28112068 is an apocalyptic number.

It is an amenable number.

28112068 is a deficient number, since it is larger than the sum of its proper divisors (21084058).

28112068 is a wasteful number, since it uses less digits than its factorization.

28112068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028021 (or 7028019 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 28112068 is about 5302.0814780612. The cubic root of 28112068 is about 304.0634822411.

The spelling of 28112068 in words is "twenty-eight million, one hundred twelve thousand, sixty-eight".