27889151 has 2 divisors, whose sum is σ = 27889152. Its totient is φ = 27889150.

The previous prime is 27889111. The next prime is 27889177. The reversal of 27889151 is 15198872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27889151 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27889099 and 27889108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27889111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13944575 + 13944576.

It is an arithmetic number, because the mean of its divisors is an integer number (13944576).

Almost surely, 2^27889151 is an apocalyptic number.

27889151 is a deficient number, since it is larger than the sum of its proper divisors (1).

27889151 is an equidigital number, since it uses as much as digits as its factorization.

27889151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 41.

The square root of 27889151 is about 5281.0179889866. The cubic root of 27889151 is about 303.2576495423.

The spelling of 27889151 in words is "twenty-seven million, eight hundred eighty-nine thousand, one hundred fifty-one".