26426809 has 2 divisors, whose sum is σ = 26426810. Its totient is φ = 26426808.

The previous prime is 26426797. The next prime is 26426821. The reversal of 26426809 is 90862462.

It is a balanced prime because it is at equal distance from previous prime (26426797) and next prime (26426821).

It can be written as a sum of positive squares in only one way, i.e., 17665209 + 8761600 = 4203^2 + 2960^2 .

It is a cyclic number.

It is not a de Polignac number, because 26426809 - 2⁹ = 26426297 is a prime.

It is not a weakly prime, because it can be changed into another prime (26426879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13213404 + 13213405.

It is an arithmetic number, because the mean of its divisors is an integer number (13213405).

Almost surely, 2^26426809 is an apocalyptic number.

It is an amenable number.

26426809 is a deficient number, since it is larger than the sum of its proper divisors (1).

26426809 is an equidigital number, since it uses as much as digits as its factorization.

26426809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 26426809 is about 5140.7012167602. The cubic root of 26426809 is about 297.8618678764.

The spelling of 26426809 in words is "twenty-six million, four hundred twenty-six thousand, eight hundred nine".