26642227 has 2 divisors, whose sum is σ = 26642228. Its totient is φ = 26642226.

The previous prime is 26642219. The next prime is 26642233. The reversal of 26642227 is 72224662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26642227 - 2³ = 26642219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26642207) 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, 13321113 + 13321114.

It is an arithmetic number, because the mean of its divisors is an integer number (13321114).

Almost surely, 2^26642227 is an apocalyptic number.

26642227 is a deficient number, since it is larger than the sum of its proper divisors (1).

26642227 is an equidigital number, since it uses as much as digits as its factorization.

26642227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 26642227 is about 5161.6108919600. The cubic root of 26642227 is about 298.6690185085.

Adding to 26642227 its reverse (72224662), we get a palindrome (98866889).

The spelling of 26642227 in words is "twenty-six million, six hundred forty-two thousand, two hundred twenty-seven".