28087027 has 4 divisors (see below), whose sum is σ = 28100016. Its totient is φ = 28074040.

The previous prime is 28087021. The next prime is 28087049. The reversal of 28087027 is 72078082.

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 28087027 - 2¹⁵ = 28054259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28086983 and 28087001.

It is not an unprimeable number, because it can be changed into a prime (28087021) 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, 2383 + ... + 7864.

It is an arithmetic number, because the mean of its divisors is an integer number (7025004).

Almost surely, 2^28087027 is an apocalyptic number.

28087027 is a deficient number, since it is larger than the sum of its proper divisors (12989).

28087027 is a wasteful number, since it uses less digits than its factorization.

28087027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12988.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 28087027 is about 5299.7195208803. The cubic root of 28087027 is about 303.9731732733.

The spelling of 28087027 in words is "twenty-eight million, eighty-seven thousand, twenty-seven".