26422309 has 2 divisors, whose sum is σ = 26422310. Its totient is φ = 26422308.

The previous prime is 26422289. The next prime is 26422337. The reversal of 26422309 is 90322462.

It is an a-pointer prime, because the next prime (26422337) can be obtained adding 26422309 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25704900 + 717409 = 5070^2 + 847^2 .

It is a cyclic number.

It is not a de Polignac number, because 26422309 - 2⁹ = 26421797 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 (26422349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211154 + 13211155.

It is an arithmetic number, because the mean of its divisors is an integer number (13211155).

Almost surely, 2^26422309 is an apocalyptic number.

It is an amenable number.

26422309 is a deficient number, since it is larger than the sum of its proper divisors (1).

26422309 is an equidigital number, since it uses as much as digits as its factorization.

26422309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 26422309 is about 5140.2635146459. The cubic root of 26422309 is about 297.8449601156.

The spelling of 26422309 in words is "twenty-six million, four hundred twenty-two thousand, three hundred nine".