27340543 has 4 divisors (see below), whose sum is σ = 28222528. Its totient is φ = 26458560.

The previous prime is 27340529. The next prime is 27340553. The reversal of 27340543 is 34504372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27340543 - 2²¹ = 25243391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27340553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440946 + ... + 441007.

It is an arithmetic number, because the mean of its divisors is an integer number (7055632).

Almost surely, 2^27340543 is an apocalyptic number.

27340543 is a deficient number, since it is larger than the sum of its proper divisors (881985).

27340543 is an equidigital number, since it uses as much as digits as its factorization.

27340543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881984.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 27340543 is about 5228.8185089942. The cubic root of 27340543 is about 301.2560045405.

The spelling of 27340543 in words is "twenty-seven million, three hundred forty thousand, five hundred forty-three".