26072117 has 2 divisors, whose sum is σ = 26072118. Its totient is φ = 26072116.

The previous prime is 26072089. The next prime is 26072119. The reversal of 26072117 is 71127062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19280881 + 6791236 = 4391^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 26072117 - 2⁸ = 26071861 is a prime.

Together with 26072119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26072119) 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, 13036058 + 13036059.

It is an arithmetic number, because the mean of its divisors is an integer number (13036059).

Almost surely, 2^26072117 is an apocalyptic number.

It is an amenable number.

26072117 is a deficient number, since it is larger than the sum of its proper divisors (1).

26072117 is an equidigital number, since it uses as much as digits as its factorization.

26072117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 26072117 is about 5106.0862703249. The cubic root of 26072117 is about 296.5232595335.

Adding to 26072117 its reverse (71127062), we get a palindrome (97199179).

The spelling of 26072117 in words is "twenty-six million, seventy-two thousand, one hundred seventeen".