27085221 has 24 divisors (see below), whose sum is σ = 40508000. Its totient is φ = 17426016.

The previous prime is 27085211. The next prime is 27085259. The reversal of 27085221 is 12258072.

It is not a de Polignac number, because 27085221 - 2¹⁴ = 27068837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085211) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 54030 + ... + 54528.

Almost surely, 2^27085221 is an apocalyptic number.

It is an amenable number.

27085221 is a deficient number, since it is larger than the sum of its proper divisors (13422779).

27085221 is a wasteful number, since it uses less digits than its factorization.

27085221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 27085221 is about 5204.3463566523. The cubic root of 27085221 is about 300.3153018331.

It can be divided in two parts, 270 and 85221, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 27085221 in words is "twenty-seven million, eighty-five thousand, two hundred twenty-one".