27893771 has 2 divisors, whose sum is σ = 27893772. Its totient is φ = 27893770.

The previous prime is 27893743. The next prime is 27893773. The reversal of 27893771 is 17739872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27893771 - 2¹⁴ = 27877387 is a prime.

Together with 27893773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27893773) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13946885 + 13946886.

It is an arithmetic number, because the mean of its divisors is an integer number (13946886).

Almost surely, 2^27893771 is an apocalyptic number.

27893771 is a deficient number, since it is larger than the sum of its proper divisors (1).

27893771 is an equidigital number, since it uses as much as digits as its factorization.

27893771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 44.

The square root of 27893771 is about 5281.4553865388. The cubic root of 27893771 is about 303.2743940820.

It can be divided in two parts, 278 and 93771, that added together give a palindrome (94049).

The spelling of 27893771 in words is "twenty-seven million, eight hundred ninety-three thousand, seven hundred seventy-one".