27855343 has 2 divisors, whose sum is σ = 27855344. Its totient is φ = 27855342.

The previous prime is 27855313. The next prime is 27855361. The reversal of 27855343 is 34355872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27855343 - 2⁹ = 27854831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27855313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13927671 + 13927672.

It is an arithmetic number, because the mean of its divisors is an integer number (13927672).

Almost surely, 2^27855343 is an apocalyptic number.

27855343 is a deficient number, since it is larger than the sum of its proper divisors (1).

27855343 is an equidigital number, since it uses as much as digits as its factorization.

27855343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 27855343 is about 5277.8161203286. The cubic root of 27855343 is about 303.1350608911.

It can be divided in two parts, 2785 and 5343, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 27855343 in words is "twenty-seven million, eight hundred fifty-five thousand, three hundred forty-three".