28680748 has 12 divisors (see below), whose sum is σ = 50308720. Its totient is φ = 14306832.

The previous prime is 28680721. The next prime is 28680749. The reversal of 28680748 is 84708682.

It is not an unprimeable number, because it can be changed into a prime (28680749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6411 + ... + 9922.

Almost surely, 2^28680748 is an apocalyptic number.

It is an amenable number.

28680748 is a deficient number, since it is larger than the sum of its proper divisors (21627972).

28680748 is a wasteful number, since it uses less digits than its factorization.

28680748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776 (or 16774 counting only the distinct ones).

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

The square root of 28680748 is about 5355.4409715727. The cubic root of 28680748 is about 306.1001139094.

The spelling of 28680748 in words is "twenty-eight million, six hundred eighty thousand, seven hundred forty-eight".