27081469 has 2 divisors, whose sum is σ = 27081470. Its totient is φ = 27081468.

The previous prime is 27081451. The next prime is 27081473. The reversal of 27081469 is 96418072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22184100 + 4897369 = 4710^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 27081469 - 2⁹ = 27080957 is a prime.

It is a super-2 number, since 2×27081469² = 1466811926395922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27081449) 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, 13540734 + 13540735.

It is an arithmetic number, because the mean of its divisors is an integer number (13540735).

Almost surely, 2^27081469 is an apocalyptic number.

It is an amenable number.

27081469 is a deficient number, since it is larger than the sum of its proper divisors (1).

27081469 is an equidigital number, since it uses as much as digits as its factorization.

27081469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 27081469 is about 5203.9858762299. The cubic root of 27081469 is about 300.3014340606.

The spelling of 27081469 in words is "twenty-seven million, eighty-one thousand, four hundred sixty-nine".