27320665 has 8 divisors (see below), whose sum is σ = 34210368. Its totient is φ = 20906160.

The previous prime is 27320663. The next prime is 27320687. The reversal of 27320665 is 56602372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27320665 - 2¹ = 27320663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27320663) 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 7 ways as a sum of consecutive naturals, for example, 118671 + ... + 118900.

It is an arithmetic number, because the mean of its divisors is an integer number (4276296).

Almost surely, 2^27320665 is an apocalyptic number.

It is an amenable number.

27320665 is a deficient number, since it is larger than the sum of its proper divisors (6889703).

27320665 is a wasteful number, since it uses less digits than its factorization.

27320665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237599.

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

The square root of 27320665 is about 5226.9173515563. The cubic root of 27320665 is about 301.1829772329.

The spelling of 27320665 in words is "twenty-seven million, three hundred twenty thousand, six hundred sixty-five".