27668761 has 8 divisors (see below), whose sum is σ = 28011200. Its totient is φ = 27328752.

The previous prime is 27668749. The next prime is 27668777. The reversal of 27668761 is 16786672.

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 27668761 - 2¹³ = 27660569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27668561) 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 in 7 ways as a sum of consecutive naturals, for example, 32011 + ... + 32863.

It is an arithmetic number, because the mean of its divisors is an integer number (3501400).

Almost surely, 2^27668761 is an apocalyptic number.

It is an amenable number.

27668761 is a deficient number, since it is larger than the sum of its proper divisors (342439).

27668761 is a wasteful number, since it uses less digits than its factorization.

27668761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its digits is 169344, while the sum is 43.

The square root of 27668761 is about 5260.1103600590. The cubic root of 27668761 is about 302.4567194414.

The spelling of 27668761 in words is "twenty-seven million, six hundred sixty-eight thousand, seven hundred sixty-one".