27113605 has 8 divisors (see below), whose sum is σ = 32706072. Its totient is φ = 21577728.

The previous prime is 27113599. The next prime is 27113609. The reversal of 27113605 is 50631172.

It can be written as a sum of positive squares in 4 ways, for example, as 919681 + 26193924 = 959^2 + 5118^2 .

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 27113605 - 2⁷ = 27113477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27113605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27113609) 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 7 ways as a sum of consecutive naturals, for example, 13084 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (4088259).

Almost surely, 2^27113605 is an apocalyptic number.

It is an amenable number.

27113605 is a deficient number, since it is larger than the sum of its proper divisors (5592467).

27113605 is a wasteful number, since it uses less digits than its factorization.

27113605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28295.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 27113605 is about 5207.0725940782. The cubic root of 27113605 is about 300.4201705070.

Adding to 27113605 its reverse (50631172), we get a palindrome (77744777).

The spelling of 27113605 in words is "twenty-seven million, one hundred thirteen thousand, six hundred five".