27668305 has 8 divisors (see below), whose sum is σ = 37945152. Its totient is φ = 18972528.

The previous prime is 27668297. The next prime is 27668309. The reversal of 27668305 is 50386672.

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 27668305 - 2³ = 27668297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27668309) 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, 395227 + ... + 395296.

It is an arithmetic number, because the mean of its divisors is an integer number (4743144).

Almost surely, 2^27668305 is an apocalyptic number.

It is an amenable number.

27668305 is a deficient number, since it is larger than the sum of its proper divisors (10276847).

27668305 is an equidigital number, since it uses as much as digits as its factorization.

27668305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790535.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 27668305 is about 5260.0670147822. The cubic root of 27668305 is about 302.4550578681.

The spelling of 27668305 in words is "twenty-seven million, six hundred sixty-eight thousand, three hundred five".