26268397 has 2 divisors, whose sum is σ = 26268398. Its totient is φ = 26268396.

The previous prime is 26268373. The next prime is 26268401. The reversal of 26268397 is 79386262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24890121 + 1378276 = 4989^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 26268397 - 2⁷ = 26268269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26268097) 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, 13134198 + 13134199.

It is an arithmetic number, because the mean of its divisors is an integer number (13134199).

Almost surely, 2^26268397 is an apocalyptic number.

It is an amenable number.

26268397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26268397 is an equidigital number, since it uses as much as digits as its factorization.

26268397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 26268397 is about 5125.2704318894. The cubic root of 26268397 is about 297.2655102074.

The spelling of 26268397 in words is "twenty-six million, two hundred sixty-eight thousand, three hundred ninety-seven".