28547560 has 32 divisors (see below), whose sum is σ = 64505160. Its totient is φ = 11370496.

The previous prime is 28547537. The next prime is 28547567. The reversal of 28547560 is 6574582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25664356 + 2883204 = 5066^2 + 1698^2 .

It is not an unprimeable number, because it can be changed into a prime (28547567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8892 + ... + 11668.

Almost surely, 2^28547560 is an apocalyptic number.

28547560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28547560 is an abundant number, since it is smaller than the sum of its proper divisors (35957600).

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

28547560 is a wasteful number, since it uses less digits than its factorization.

28547560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 28547560 is about 5342.9916713392. The cubic root of 28547560 is about 305.6255547739.

The spelling of 28547560 in words is "twenty-eight million, five hundred forty-seven thousand, five hundred sixty".