27445423 has 2 divisors, whose sum is σ = 27445424. Its totient is φ = 27445422.

The previous prime is 27445409. The next prime is 27445433. The reversal of 27445423 is 32454472.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27445423 - 2⁵ = 27445391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27445433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13722711 + 13722712.

It is an arithmetic number, because the mean of its divisors is an integer number (13722712).

Almost surely, 2^27445423 is an apocalyptic number.

27445423 is a deficient number, since it is larger than the sum of its proper divisors (1).

27445423 is an equidigital number, since it uses as much as digits as its factorization.

27445423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 31.

The square root of 27445423 is about 5238.8379436665. The cubic root of 27445423 is about 301.6407251924.

Adding to 27445423 its reverse (32454472), we get a palindrome (59899895).

The spelling of 27445423 in words is "twenty-seven million, four hundred forty-five thousand, four hundred twenty-three".