28748068 has 24 divisors (see below), whose sum is σ = 53101440. Its totient is φ = 13590720.

The previous prime is 28748063. The next prime is 28748087. The reversal of 28748068 is 86084782.

It is not an unprimeable number, because it can be changed into a prime (28748063) 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, 6433 + ... + 9943.

It is an arithmetic number, because the mean of its divisors is an integer number (2212560).

Almost surely, 2^28748068 is an apocalyptic number.

It is an amenable number.

28748068 is a deficient number, since it is larger than the sum of its proper divisors (24353372).

28748068 is a wasteful number, since it uses less digits than its factorization.

28748068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 28748068 is about 5361.7224844261. The cubic root of 28748068 is about 306.3394214509.

The spelling of 28748068 in words is "twenty-eight million, seven hundred forty-eight thousand, sixty-eight".