28566672 has 20 divisors (see below), whose sum is σ = 73797360. Its totient is φ = 9522208.

The previous prime is 28566661. The next prime is 28566673. The reversal of 28566672 is 27666582.

It is not an unprimeable number, because it can be changed into a prime (28566673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297522 + ... + 297617.

It is an arithmetic number, because the mean of its divisors is an integer number (3689868).

Almost surely, 2^28566672 is an apocalyptic number.

It is an amenable number.

28566672 is an abundant number, since it is smaller than the sum of its proper divisors (45230688).

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

28566672 is a wasteful number, since it uses less digits than its factorization.

28566672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595150 (or 595144 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 28566672 is about 5344.7798832132. The cubic root of 28566672 is about 305.6937428851.

The spelling of 28566672 in words is "twenty-eight million, five hundred sixty-six thousand, six hundred seventy-two".