27668537 has 8 divisors (see below), whose sum is σ = 31549896. Its totient is φ = 24037632.

The previous prime is 27668527. The next prime is 27668549. The reversal of 27668537 is 73586672.

It can be written as a sum of positive squares in 4 ways, for example, as 929296 + 26739241 = 964^2 + 5171^2 .

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 27668537 - 2¹⁰ = 27667513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27668507) 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, 62378 + ... + 62819.

It is an arithmetic number, because the mean of its divisors is an integer number (3943737).

Almost surely, 2^27668537 is an apocalyptic number.

It is an amenable number.

27668537 is a deficient number, since it is larger than the sum of its proper divisors (3881359).

27668537 is a wasteful number, since it uses less digits than its factorization.

27668537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125227.

The product of its digits is 423360, while the sum is 44.

The square root of 27668537 is about 5260.0890676870. The cubic root of 27668537 is about 302.4559032322.

The spelling of 27668537 in words is "twenty-seven million, six hundred sixty-eight thousand, five hundred thirty-seven".