28596563 has 4 divisors (see below), whose sum is σ = 28608528. Its totient is φ = 28584600.

The previous prime is 28596553. The next prime is 28596569. The reversal of 28596563 is 36569582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28596563 - 2¹² = 28592467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28596569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031 + ... + 7632.

It is an arithmetic number, because the mean of its divisors is an integer number (7152132).

Almost surely, 2^28596563 is an apocalyptic number.

28596563 is a deficient number, since it is larger than the sum of its proper divisors (11965).

28596563 is an equidigital number, since it uses as much as digits as its factorization.

28596563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11964.

The product of its digits is 388800, while the sum is 44.

The square root of 28596563 is about 5347.5754319130. The cubic root of 28596563 is about 305.8003275383.

The spelling of 28596563 in words is "twenty-eight million, five hundred ninety-six thousand, five hundred sixty-three".