28866027 has 4 divisors (see below), whose sum is σ = 38488040. Its totient is φ = 19244016.

The previous prime is 28866011. The next prime is 28866043. The reversal of 28866027 is 72066882.

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

It is an interprime number because it is at equal distance from previous prime (28866011) and next prime (28866043).

It is not a de Polignac number, because 28866027 - 2⁴ = 28866011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28866427) 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, 4811002 + ... + 4811007.

It is an arithmetic number, because the mean of its divisors is an integer number (9622010).

Almost surely, 2^28866027 is an apocalyptic number.

28866027 is a deficient number, since it is larger than the sum of its proper divisors (9622013).

28866027 is an equidigital number, since it uses as much as digits as its factorization.

28866027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622012.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28866027 is about 5372.7113266953. The cubic root of 28866027 is about 306.7578400671.

The spelling of 28866027 in words is "twenty-eight million, eight hundred sixty-six thousand, twenty-seven".