27168644 has 6 divisors (see below), whose sum is σ = 47545134. Its totient is φ = 13584320.

The previous prime is 27168641. The next prime is 27168667. The reversal of 27168644 is 44686172.

It can be written as a sum of positive squares in only one way, i.e., 23892544 + 3276100 = 4888^2 + 1810^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27168598 and 27168607.

It is not an unprimeable number, because it can be changed into a prime (27168641) 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 as a sum of consecutive naturals, namely, 3396077 + ... + 3396084.

It is an arithmetic number, because the mean of its divisors is an integer number (7924189).

Almost surely, 2^27168644 is an apocalyptic number.

It is an amenable number.

27168644 is a deficient number, since it is larger than the sum of its proper divisors (20376490).

27168644 is a wasteful number, since it uses less digits than its factorization.

27168644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792165 (or 6792163 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 27168644 is about 5212.3549380295. The cubic root of 27168644 is about 300.6233114533.

The spelling of 27168644 in words is "twenty-seven million, one hundred sixty-eight thousand, six hundred forty-four".