27000205 has 8 divisors (see below), whose sum is σ = 32431104. Its totient is φ = 21579600.

The previous prime is 27000203. The next prime is 27000209. The reversal of 27000205 is 50200072.

It is a happy number.

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

It is not a de Polignac number, because 27000205 - 2¹ = 27000203 is a prime.

It is a super-2 number, since 2×27000205² = 1458022140084050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27000203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5520 + ... + 9190.

It is an arithmetic number, because the mean of its divisors is an integer number (4053888).

Almost surely, 2^27000205 is an apocalyptic number.

It is an amenable number.

27000205 is a deficient number, since it is larger than the sum of its proper divisors (5430899).

27000205 is a wasteful number, since it uses less digits than its factorization.

27000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 27000205 is about 5196.1721488034. The cubic root of 27000205 is about 300.0007592573. Note that the first 3 decimals are identical.

Adding to 27000205 its reverse (50200072), we get a palindrome (77200277).

The spelling of 27000205 in words is "twenty-seven million, two hundred five", and thus it is an aban number.