27444223 has 2 divisors, whose sum is σ = 27444224. Its totient is φ = 27444222.

The previous prime is 27444181. The next prime is 27444229. The reversal of 27444223 is 32244472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27444223 - 2¹⁷ = 27313151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27444191 and 27444200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27444229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13722111 + 13722112.

It is an arithmetic number, because the mean of its divisors is an integer number (13722112).

Almost surely, 2^27444223 is an apocalyptic number.

27444223 is a deficient number, since it is larger than the sum of its proper divisors (1).

27444223 is an equidigital number, since it uses as much as digits as its factorization.

27444223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 28.

The square root of 27444223 is about 5238.7234131991. The cubic root of 27444223 is about 301.6363289021.

Adding to 27444223 its reverse (32244472), we get a palindrome (59688695).

The spelling of 27444223 in words is "twenty-seven million, four hundred forty-four thousand, two hundred twenty-three".