27538723 has 2 divisors, whose sum is σ = 27538724. Its totient is φ = 27538722.

The previous prime is 27538711. The next prime is 27538727. The reversal of 27538723 is 32783572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27538723 - 2⁹ = 27538211 is a prime.

It is not a weakly prime, because it can be changed into another prime (27538727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13769361 + 13769362.

It is an arithmetic number, because the mean of its divisors is an integer number (13769362).

Almost surely, 2^27538723 is an apocalyptic number.

27538723 is a deficient number, since it is larger than the sum of its proper divisors (1).

27538723 is an equidigital number, since it uses as much as digits as its factorization.

27538723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 37.

The square root of 27538723 is about 5247.7350352319. The cubic root of 27538723 is about 301.9821451953.

It can be divided in two parts, 2753 and 8723, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 27538723 in words is "twenty-seven million, five hundred thirty-eight thousand, seven hundred twenty-three".