28565027 has 4 divisors (see below), whose sum is σ = 29049240. Its totient is φ = 28080816.

The previous prime is 28565003. The next prime is 28565059. The reversal of 28565027 is 72056582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28565027 - 2¹⁴ = 28548643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28565827) 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, 242018 + ... + 242135.

It is an arithmetic number, because the mean of its divisors is an integer number (7262310).

Almost surely, 2^28565027 is an apocalyptic number.

28565027 is a deficient number, since it is larger than the sum of its proper divisors (484213).

28565027 is an equidigital number, since it uses as much as digits as its factorization.

28565027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484212.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28565027 is about 5344.6259925274. The cubic root of 28565027 is about 305.6878750232.

The spelling of 28565027 in words is "twenty-eight million, five hundred sixty-five thousand, twenty-seven".