27317005 has 8 divisors (see below), whose sum is σ = 32947992. Its totient is φ = 21741888.

The previous prime is 27316981. The next prime is 27317023. The reversal of 27317005 is 50071372.

It can be written as a sum of positive squares in 4 ways, for example, as 5963364 + 21353641 = 2442^2 + 4621^2 .

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 27317005 - 2⁵ = 27316973 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12882 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (4118499).

Almost surely, 2^27317005 is an apocalyptic number.

It is an amenable number.

27317005 is a deficient number, since it is larger than the sum of its proper divisors (5630987).

27317005 is a wasteful number, since it uses less digits than its factorization.

27317005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27935.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 27317005 is about 5226.5672290711. The cubic root of 27317005 is about 301.1695273538.

Adding to 27317005 its reverse (50071372), we get a palindrome (77388377).

The spelling of 27317005 in words is "twenty-seven million, three hundred seventeen thousand, five".