26647 has 2 divisors, whose sum is σ = 26648. Its totient is φ = 26646.

The previous prime is 26641. The next prime is 26669. The reversal of 26647 is 74662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26647 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 6⁴ + 6⁵ + 4⁴ + 7⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13323 + 13324.

It is an arithmetic number, because the mean of its divisors is an integer number (13324).

2²⁶⁶⁴⁷ is an apocalyptic number.

26647 is a deficient number, since it is larger than the sum of its proper divisors (1).

26647 is an equidigital number, since it uses as much as digits as its factorization.

26647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 26647 is about 163.2390884562. The cubic root of 26647 is about 29.8686853130.

It can be divided in two parts, 266 and 47, that added together give a palindrome (313).

The spelling of 26647 in words is "twenty-six thousand, six hundred forty-seven".