27987027 has 8 divisors (see below), whose sum is σ = 37665216. Its totient is φ = 18483432.

The previous prime is 27987013. The next prime is 27987031. The reversal of 27987027 is 72078972.

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

It is not a de Polignac number, because 27987027 - 2⁶ = 27986963 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 27987027.

It is not an unprimeable number, because it can be changed into a prime (27987007) 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, 43273 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (4708152).

Almost surely, 2^27987027 is an apocalyptic number.

27987027 is a deficient number, since it is larger than the sum of its proper divisors (9678189).

27987027 is a wasteful number, since it uses less digits than its factorization.

27987027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87297.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 27987027 is about 5290.2766468305. The cubic root of 27987027 is about 303.6119927182.

The spelling of 27987027 in words is "twenty-seven million, nine hundred eighty-seven thousand, twenty-seven".