27216011 has 2 divisors, whose sum is σ = 27216012. Its totient is φ = 27216010.

The previous prime is 27216001. The next prime is 27216017. The reversal of 27216011 is 11061272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27216011 - 2¹⁰ = 27214987 is a prime.

It is a super-2 number, since 2×27216011² = 1481422509504242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27216017) 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, 13608005 + 13608006.

It is an arithmetic number, because the mean of its divisors is an integer number (13608006).

Almost surely, 2^27216011 is an apocalyptic number.

27216011 is a deficient number, since it is larger than the sum of its proper divisors (1).

27216011 is an equidigital number, since it uses as much as digits as its factorization.

27216011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 27216011 is about 5216.8966828949. The cubic root of 27216011 is about 300.7979166228.

Adding to 27216011 its reverse (11061272), we get a palindrome (38277283).

The spelling of 27216011 in words is "twenty-seven million, two hundred sixteen thousand, eleven".