27340205 has 4 divisors (see below), whose sum is σ = 32808252. Its totient is φ = 21872160.

The previous prime is 27340193. The next prime is 27340213. The reversal of 27340205 is 50204372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7856809 + 19483396 = 2803^2 + 4414^2 .

It is not a de Polignac number, because 27340205 - 2⁶ = 27340141 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2734016 + ... + 2734025.

It is an arithmetic number, because the mean of its divisors is an integer number (8202063).

Almost surely, 2^27340205 is an apocalyptic number.

It is an amenable number.

27340205 is a deficient number, since it is larger than the sum of its proper divisors (5468047).

27340205 is an equidigital number, since it uses as much as digits as its factorization.

27340205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468046.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 27340205 is about 5228.7861880173. The cubic root of 27340205 is about 301.2547631003.

Adding to 27340205 its reverse (50204372), we get a palindrome (77544577).

The spelling of 27340205 in words is "twenty-seven million, three hundred forty thousand, two hundred five".