26226709 has 2 divisors, whose sum is σ = 26226710. Its totient is φ = 26226708.

The previous prime is 26226671. The next prime is 26226721. The reversal of 26226709 is 90762262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19580625 + 6646084 = 4425^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 26226709 - 2⁹ = 26226197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26226209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13113354 + 13113355.

It is an arithmetic number, because the mean of its divisors is an integer number (13113355).

Almost surely, 2^26226709 is an apocalyptic number.

It is an amenable number.

26226709 is a deficient number, since it is larger than the sum of its proper divisors (1).

26226709 is an equidigital number, since it uses as much as digits as its factorization.

26226709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 26226709 is about 5121.2019097083. The cubic root of 26226709 is about 297.1081732882.

The spelling of 26226709 in words is "twenty-six million, two hundred twenty-six thousand, seven hundred nine".