26811229 has 2 divisors, whose sum is σ = 26811230. Its totient is φ = 26811228.

The previous prime is 26811203. The next prime is 26811247. The reversal of 26811229 is 92211862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20232004 + 6579225 = 4498^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 26811229 - 2⁷ = 26811101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26811229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26811289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13405614 + 13405615.

It is an arithmetic number, because the mean of its divisors is an integer number (13405615).

Almost surely, 2^26811229 is an apocalyptic number.

It is an amenable number.

26811229 is a deficient number, since it is larger than the sum of its proper divisors (1).

26811229 is an equidigital number, since it uses as much as digits as its factorization.

26811229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 26811229 is about 5177.9560639310. The cubic root of 26811229 is about 299.2992124120.

The spelling of 26811229 in words is "twenty-six million, eight hundred eleven thousand, two hundred twenty-nine".