26000321 has 2 divisors, whose sum is σ = 26000322. Its totient is φ = 26000320.

The previous prime is 26000311. The next prime is 26000323. The reversal of 26000321 is 12300062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 102400 = 5089^2 + 320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26000321 is a prime.

Together with 26000323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26000296 and 26000305.

It is not a weakly prime, because it can be changed into another prime (26000323) 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, 13000160 + 13000161.

It is an arithmetic number, because the mean of its divisors is an integer number (13000161).

Almost surely, 2^26000321 is an apocalyptic number.

It is an amenable number.

26000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26000321 is an equidigital number, since it uses as much as digits as its factorization.

26000321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 26000321 is about 5099.0509901353. The cubic root of 26000321 is about 296.2508260168.

Adding to 26000321 its reverse (12300062), we get a palindrome (38300383).

The spelling of 26000321 in words is "twenty-six million, three hundred twenty-one", and thus it is an aban number.