26320117 has 2 divisors, whose sum is σ = 26320118. Its totient is φ = 26320116.

The previous prime is 26320103. The next prime is 26320153. The reversal of 26320117 is 71102362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13830961 + 12489156 = 3719^2 + 3534^2 .

It is a cyclic number.

It is not a de Polignac number, because 26320117 - 2²³ = 17931509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26320417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13160058 + 13160059.

It is an arithmetic number, because the mean of its divisors is an integer number (13160059).

Almost surely, 2^26320117 is an apocalyptic number.

It is an amenable number.

26320117 is a deficient number, since it is larger than the sum of its proper divisors (1).

26320117 is an equidigital number, since it uses as much as digits as its factorization.

26320117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 26320117 is about 5130.3135381768. The cubic root of 26320117 is about 297.4604782374.

Adding to 26320117 its reverse (71102362), we get a palindrome (97422479).

The spelling of 26320117 in words is "twenty-six million, three hundred twenty thousand, one hundred seventeen".