27471121 has 2 divisors, whose sum is σ = 27471122. Its totient is φ = 27471120.

The previous prime is 27471083. The next prime is 27471127. The reversal of 27471121 is 12117472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 13220496 = 3775^2 + 3636^2 .

It is a cyclic number.

It is not a de Polignac number, because 27471121 - 2⁹ = 27470609 is a prime.

It is not a weakly prime, because it can be changed into another prime (27471127) 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 as a sum of consecutive naturals, namely, 13735560 + 13735561.

It is an arithmetic number, because the mean of its divisors is an integer number (13735561).

Almost surely, 2^27471121 is an apocalyptic number.

It is an amenable number.

27471121 is a deficient number, since it is larger than the sum of its proper divisors (1).

27471121 is an equidigital number, since it uses as much as digits as its factorization.

27471121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 784, while the sum is 25.

The square root of 27471121 is about 5241.2900129644. The cubic root of 27471121 is about 301.7348410100.

Adding to 27471121 its reverse (12117472), we get a palindrome (39588593).

The spelling of 27471121 in words is "twenty-seven million, four hundred seventy-one thousand, one hundred twenty-one".