27166985 has 8 divisors (see below), whose sum is σ = 32731776. Its totient is φ = 21646000.

The previous prime is 27166981. The next prime is 27167011. The reversal of 27166985 is 58966172.

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

It is not a de Polignac number, because 27166985 - 2² = 27166981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27166981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9569 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (4091472).

Almost surely, 2^27166985 is an apocalyptic number.

It is an amenable number.

27166985 is a deficient number, since it is larger than the sum of its proper divisors (5564791).

27166985 is a wasteful number, since it uses less digits than its factorization.

27166985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21903.

The product of its digits is 181440, while the sum is 44.

The square root of 27166985 is about 5212.1957944805. The cubic root of 27166985 is about 300.6171923376.

The spelling of 27166985 in words is "twenty-seven million, one hundred sixty-six thousand, nine hundred eighty-five".