27844145 has 16 divisors (see below), whose sum is σ = 39847680. Its totient is φ = 18262464.

The previous prime is 27844129. The next prime is 27844189. The reversal of 27844145 is 54144872.

It is a cyclic number.

It is not a de Polignac number, because 27844145 - 2⁴ = 27844129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16490 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (2490480).

Almost surely, 2^27844145 is an apocalyptic number.

It is an amenable number.

27844145 is a deficient number, since it is larger than the sum of its proper divisors (12003535).

27844145 is a wasteful number, since it uses less digits than its factorization.

27844145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34624.

The product of its digits is 35840, while the sum is 35.

The square root of 27844145 is about 5276.7551582388. The cubic root of 27844145 is about 303.0944347967.

The spelling of 27844145 in words is "twenty-seven million, eight hundred forty-four thousand, one hundred forty-five".