28107568 has 40 divisors (see below), whose sum is σ = 56732480. Its totient is φ = 13478400.

The previous prime is 28107559. The next prime is 28107577. The reversal of 28107568 is 86570182.

It is an interprime number because it is at equal distance from previous prime (28107559) and next prime (28107577).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46468 + ... + 47068.

It is an arithmetic number, because the mean of its divisors is an integer number (1418312).

Almost surely, 2^28107568 is an apocalyptic number.

It is an amenable number.

28107568 is an abundant number, since it is smaller than the sum of its proper divisors (28624912).

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

28107568 is a wasteful number, since it uses less digits than its factorization.

28107568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 28107568 is about 5301.6570994360. The cubic root of 28107568 is about 304.0472571964.

The spelling of 28107568 in words is "twenty-eight million, one hundred seven thousand, five hundred sixty-eight".