28187327 has 8 divisors (see below), whose sum is σ = 32546976. Its totient is φ = 23910912.

The previous prime is 28187297. The next prime is 28187353. The reversal of 28187327 is 72378182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28187327 - 2¹⁰ = 28186303 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28187527) 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, 20078 + ... + 21435.

It is an arithmetic number, because the mean of its divisors is an integer number (4068372).

Almost surely, 2^28187327 is an apocalyptic number.

28187327 is a deficient number, since it is larger than the sum of its proper divisors (4359649).

28187327 is an equidigital number, since it uses as much as digits as its factorization.

28187327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41617.

The product of its digits is 37632, while the sum is 38.

The square root of 28187327 is about 5309.1738528701. The cubic root of 28187327 is about 304.3345772431.

The spelling of 28187327 in words is "twenty-eight million, one hundred eighty-seven thousand, three hundred twenty-seven".