28860566 has 16 divisors (see below), whose sum is σ = 51072000. Its totient is φ = 11969640.

The previous prime is 28860551. The next prime is 28860569. The reversal of 28860566 is 66506882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860569) 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, 32816 + ... + 33683.

It is an arithmetic number, because the mean of its divisors is an integer number (3192000).

Almost surely, 2^28860566 is an apocalyptic number.

28860566 is a deficient number, since it is larger than the sum of its proper divisors (22211434).

28860566 is a wasteful number, since it uses less digits than its factorization.

28860566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66539.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 28860566 is about 5372.2030862580. The cubic root of 28860566 is about 306.7384942548.

The spelling of 28860566 in words is "twenty-eight million, eight hundred sixty thousand, five hundred sixty-six".