27740539 has 2 divisors, whose sum is σ = 27740540. Its totient is φ = 27740538.

The previous prime is 27740533. The next prime is 27740563. The reversal of 27740539 is 93504772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27740539 - 2¹⁷ = 27609467 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27740498 and 27740507.

It is not a weakly prime, because it can be changed into another prime (27740533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13870269 + 13870270.

It is an arithmetic number, because the mean of its divisors is an integer number (13870270).

Almost surely, 2^27740539 is an apocalyptic number.

27740539 is a deficient number, since it is larger than the sum of its proper divisors (1).

27740539 is an equidigital number, since it uses as much as digits as its factorization.

27740539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 27740539 is about 5266.9288014933. The cubic root of 27740539 is about 302.7180369173.

The spelling of 27740539 in words is "twenty-seven million, seven hundred forty thousand, five hundred thirty-nine".