27944369 has 2 divisors, whose sum is σ = 27944370. Its totient is φ = 27944368.

The previous prime is 27944363. The next prime is 27944387. The reversal of 27944369 is 96344972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25633969 + 2310400 = 5063^2 + 1520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27944369 is a prime.

It is a super-2 number, since 2×27944369² = 1561775517616322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27944363) 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, 13972184 + 13972185.

It is an arithmetic number, because the mean of its divisors is an integer number (13972185).

Almost surely, 2^27944369 is an apocalyptic number.

It is an amenable number.

27944369 is a deficient number, since it is larger than the sum of its proper divisors (1).

27944369 is an equidigital number, since it uses as much as digits as its factorization.

27944369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 27944369 is about 5286.2433731337. The cubic root of 27944369 is about 303.4576585189.

The spelling of 27944369 in words is "twenty-seven million, nine hundred forty-four thousand, three hundred sixty-nine".