26326613 has 2 divisors, whose sum is σ = 26326614. Its totient is φ = 26326612.

The previous prime is 26326607. The next prime is 26326639. The reversal of 26326613 is 31662362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19864849 + 6461764 = 4457^2 + 2542^2 .

It is a cyclic number.

It is not a de Polignac number, because 26326613 - 2⁶ = 26326549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26326603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13163306 + 13163307.

It is an arithmetic number, because the mean of its divisors is an integer number (13163307).

Almost surely, 2^26326613 is an apocalyptic number.

It is an amenable number.

26326613 is a deficient number, since it is larger than the sum of its proper divisors (1).

26326613 is an equidigital number, since it uses as much as digits as its factorization.

26326613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 26326613 is about 5130.9465988256. The cubic root of 26326613 is about 297.4849480415.

Adding to 26326613 its reverse (31662362), we get a palindrome (57988975).

The spelling of 26326613 in words is "twenty-six million, three hundred twenty-six thousand, six hundred thirteen".