27941689 has 2 divisors, whose sum is σ = 27941690. Its totient is φ = 27941688.

The previous prime is 27941629. The next prime is 27941713. The reversal of 27941689 is 98614972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18207289 + 9734400 = 4267^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 27941689 - 2¹⁵ = 27908921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27941629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13970844 + 13970845.

It is an arithmetic number, because the mean of its divisors is an integer number (13970845).

Almost surely, 2^27941689 is an apocalyptic number.

It is an amenable number.

27941689 is a deficient number, since it is larger than the sum of its proper divisors (1).

27941689 is an equidigital number, since it uses as much as digits as its factorization.

27941689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 27941689 is about 5285.9898789158. The cubic root of 27941689 is about 303.4479571903.

The spelling of 27941689 in words is "twenty-seven million, nine hundred forty-one thousand, six hundred eighty-nine".