26417 has 2 divisors, whose sum is σ = 26418. Its totient is φ = 26416.

The previous prime is 26407. The next prime is 26423. The reversal of 26417 is 71462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18496 + 7921 = 136^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 26417 - 2⁸ = 26161 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (26407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13208 + 13209.

It is an arithmetic number, because the mean of its divisors is an integer number (13209).

2²⁶⁴¹⁷ is an apocalyptic number.

It is an amenable number.

26417 is a deficient number, since it is larger than the sum of its proper divisors (1).

26417 is an equidigital number, since it uses as much as digits as its factorization.

26417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 26417 is about 162.5330735574. The cubic root of 26417 is about 29.7825010247.

Adding to 26417 its reverse (71462), we get a palindrome (97879).

The spelling of 26417 in words is "twenty-six thousand, four hundred seventeen".