27989085 has 8 divisors (see below), whose sum is σ = 44782560. Its totient is φ = 14927504.

The previous prime is 27989077. The next prime is 27989153. The reversal of 27989085 is 58098972.

It is a happy number.

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 27989085 - 2³ = 27989077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932955 + ... + 932984.

It is an arithmetic number, because the mean of its divisors is an integer number (5597820).

Almost surely, 2^27989085 is an apocalyptic number.

It is an amenable number.

27989085 is a deficient number, since it is larger than the sum of its proper divisors (16793475).

27989085 is a wasteful number, since it uses less digits than its factorization.

27989085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865947.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 27989085 is about 5290.4711510413. The cubic root of 27989085 is about 303.6194344776.

The spelling of 27989085 in words is "twenty-seven million, nine hundred eighty-nine thousand, eighty-five".