27006681 has 16 divisors (see below), whose sum is σ = 38941056. Its totient is φ = 16550016.

The previous prime is 27006649. The next prime is 27006691. The reversal of 27006681 is 18660072.

It is a happy number.

It is not a de Polignac number, because 27006681 - 2⁵ = 27006649 is a prime.

It is a super-2 number, since 2×27006681² = 1458721637271522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27006691) 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 in 15 ways as a sum of consecutive naturals, for example, 8941 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (2433816).

Almost surely, 2^27006681 is an apocalyptic number.

It is an amenable number.

27006681 is a deficient number, since it is larger than the sum of its proper divisors (11934375).

27006681 is a wasteful number, since it uses less digits than its factorization.

27006681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 27006681 is about 5196.7952624671. The cubic root of 27006681 is about 300.0247424038.

The spelling of 27006681 in words is "twenty-seven million, six thousand, six hundred eighty-one".