28934568 has 96 divisors (see below), whose sum is σ = 88888800. Its totient is φ = 8429184.

The previous prime is 28934539. The next prime is 28934573. The reversal of 28934568 is 86543982.

28934568 is a `hidden beast` number, since 2 + 89 + 3 + 4 + 568 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 16971 + ... + 18597.

It is an arithmetic number, because the mean of its divisors is an integer number (925925).

Almost surely, 2^28934568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28934568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44444400).

28934568 is an abundant number, since it is smaller than the sum of its proper divisors (59954232).

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

28934568 is a wasteful number, since it uses less digits than its factorization.

28934568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1664 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 28934568 is about 5379.0861677426. The cubic root of 28934568 is about 307.0004420907. Note that the first 3 decimals are identical.

The spelling of 28934568 in words is "twenty-eight million, nine hundred thirty-four thousand, five hundred sixty-eight".