26226397 has 2 divisors, whose sum is σ = 26226398. Its totient is φ = 26226396.

The previous prime is 26226391. The next prime is 26226419. The reversal of 26226397 is 79362262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 7338681 = 4346^2 + 2709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26226397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26226391) 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, 13113198 + 13113199.

It is an arithmetic number, because the mean of its divisors is an integer number (13113199).

Almost surely, 2^26226397 is an apocalyptic number.

It is an amenable number.

26226397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26226397 is an equidigital number, since it uses as much as digits as its factorization.

26226397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 26226397 is about 5121.1714480185. The cubic root of 26226397 is about 297.1069951239.

The spelling of 26226397 in words is "twenty-six million, two hundred twenty-six thousand, three hundred ninety-seven".