27320017 has 4 divisors (see below), whose sum is σ = 27665920. Its totient is φ = 26974116.

The previous prime is 27319997. The next prime is 27320039. The reversal of 27320017 is 71002372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27320017 - 2⁷ = 27319889 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 27320017.

It is not an unprimeable number, because it can be changed into a prime (27320047) 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 3 ways as a sum of consecutive naturals, for example, 172833 + ... + 172990.

It is an arithmetic number, because the mean of its divisors is an integer number (6916480).

Almost surely, 2^27320017 is an apocalyptic number.

It is an amenable number.

27320017 is a deficient number, since it is larger than the sum of its proper divisors (345903).

27320017 is an equidigital number, since it uses as much as digits as its factorization.

27320017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345902.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 27320017 is about 5226.8553643658. The cubic root of 27320017 is about 301.1805960303.

Adding to 27320017 its reverse (71002372), we get a palindrome (98322389).

The spelling of 27320017 in words is "twenty-seven million, three hundred twenty thousand, seventeen".