26244809 has 2 divisors, whose sum is σ = 26244810. Its totient is φ = 26244808.

The previous prime is 26244791. The next prime is 26244839. The reversal of 26244809 is 90844262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20675209 + 5569600 = 4547^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 26244809 - 2¹⁶ = 26179273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26244839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13122404 + 13122405.

It is an arithmetic number, because the mean of its divisors is an integer number (13122405).

Almost surely, 2^26244809 is an apocalyptic number.

It is an amenable number.

26244809 is a deficient number, since it is larger than the sum of its proper divisors (1).

26244809 is an equidigital number, since it uses as much as digits as its factorization.

26244809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 26244809 is about 5122.9687682046. The cubic root of 26244809 is about 297.1765059347.

The spelling of 26244809 in words is "twenty-six million, two hundred forty-four thousand, eight hundred nine".