28546568 has 12 divisors (see below), whose sum is σ = 53553165. Its totient is φ = 14265728.

The previous prime is 28546559. The next prime is 28546589. The reversal of 28546568 is 86564582.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 28536964 + 9604 = 5342^2 + 98^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3778.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 14168 + ... + 16056.

Almost surely, 2^28546568 is an apocalyptic number.

It is an amenable number.

28546568 is a deficient number, since it is larger than the sum of its proper divisors (25006597).

28546568 is an frugal number, since it uses more digits than its factorization.

28546568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784 (or 1891 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 28546568 is about 5342.8988386456. The cubic root of 28546568 is about 305.6220146691.

Multiplying 28546568 by its product of digits (460800), we get a square (13154258534400 = 3626880²).

The spelling of 28546568 in words is "twenty-eight million, five hundred forty-six thousand, five hundred sixty-eight".