27008661 has 8 divisors (see below), whose sum is σ = 36167040. Its totient is φ = 17928032.

The previous prime is 27008621. The next prime is 27008669. The reversal of 27008661 is 16680072.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27008661 - 2¹⁰ = 27007637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27008669) 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 7 ways as a sum of consecutive naturals, for example, 18621 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (4520880).

Almost surely, 2^27008661 is an apocalyptic number.

It is an amenable number.

27008661 is a deficient number, since it is larger than the sum of its proper divisors (9158379).

27008661 is a wasteful number, since it uses less digits than its factorization.

27008661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38875.

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

The square root of 27008661 is about 5196.9857609965. The cubic root of 27008661 is about 300.0320743484.

The spelling of 27008661 in words is "twenty-seven million, eight thousand, six hundred sixty-one".