28860648 has 32 divisors (see below), whose sum is σ = 73172160. Its totient is φ = 9484160.

The previous prime is 28860647. The next prime is 28860661. The reversal of 28860648 is 84606882.

It is not an unprimeable number, because it can be changed into a prime (28860647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6765 + ... + 10172.

It is an arithmetic number, because the mean of its divisors is an integer number (2286630).

Almost surely, 2^28860648 is an apocalyptic number.

It is an amenable number.

28860648 is an abundant number, since it is smaller than the sum of its proper divisors (44311512).

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

28860648 is a wasteful number, since it uses less digits than its factorization.

28860648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17017 (or 17013 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 28860648 is about 5372.2107181309. The cubic root of 28860648 is about 306.7387847612.

The spelling of 28860648 in words is "twenty-eight million, eight hundred sixty thousand, six hundred forty-eight".