26268289 has 2 divisors, whose sum is σ = 26268290. Its totient is φ = 26268288.

The previous prime is 26268269. The next prime is 26268371. The reversal of 26268289 is 98286262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14592400 + 11675889 = 3820^2 + 3417^2 .

It is a cyclic number.

It is not a de Polignac number, because 26268289 - 2⁵ = 26268257 is a prime.

It is not a weakly prime, because it can be changed into another prime (26268269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13134144 + 13134145.

It is an arithmetic number, because the mean of its divisors is an integer number (13134145).

Almost surely, 2^26268289 is an apocalyptic number.

It is an amenable number.

26268289 is a deficient number, since it is larger than the sum of its proper divisors (1).

26268289 is an equidigital number, since it uses as much as digits as its factorization.

26268289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 26268289 is about 5125.2598958492. The cubic root of 26268289 is about 297.2651028139.

The spelling of 26268289 in words is "twenty-six million, two hundred sixty-eight thousand, two hundred eighty-nine".