27000049 has 2 divisors, whose sum is σ = 27000050. Its totient is φ = 27000048.

The previous prime is 27000041. The next prime is 27000079. The reversal of 27000049 is 94000072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17909824 + 9090225 = 4232^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 27000049 - 2³ = 27000041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26999993 and 27000029.

It is not a weakly prime, because it can be changed into another prime (27000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500024 + 13500025.

It is an arithmetic number, because the mean of its divisors is an integer number (13500025).

Almost surely, 2^27000049 is an apocalyptic number.

It is an amenable number.

27000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

27000049 is an equidigital number, since it uses as much as digits as its factorization.

27000049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 27000049 is about 5196.1571377317. The cubic root of 27000049 is about 300.0001814814. Note that the first 3 decimals are identical.

Adding to 27000049 its reverse (94000072), we get a palindrome (121000121).

The spelling of 27000049 in words is "twenty-seven million, forty-nine", and thus it is an aban number and an uban number.