27564313 has 6 divisors (see below), whose sum is σ = 32064666. Its totient is φ = 23626512.

The previous prime is 27564311. The next prime is 27564323. The reversal of 27564313 is 31346572.

It can be written as a sum of positive squares in only one way, i.e., 26904969 + 659344 = 5187^2 + 812^2 .

It is not a de Polignac number, because 27564313 - 2¹ = 27564311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27564311) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 281220 + ... + 281317.

It is an arithmetic number, because the mean of its divisors is an integer number (5344111).

Almost surely, 2^27564313 is an apocalyptic number.

It is an amenable number.

27564313 is a deficient number, since it is larger than the sum of its proper divisors (4500353).

27564313 is an equidigital number, since it uses as much as digits as its factorization.

27564313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562551 (or 562544 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 27564313 is about 5250.1726638274. The cubic root of 27564313 is about 302.0756538970.

The spelling of 27564313 in words is "twenty-seven million, five hundred sixty-four thousand, three hundred thirteen".