26641 has 2 divisors, whose sum is σ = 26642. Its totient is φ = 26640.
The previous prime is 26633. The next prime is 26647. The reversal of 26641 is 14662.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16641 + 10000 = 129^2 + 100^2 .
It is a cyclic number.
It is not a de Polignac number, because 26641 - 23 = 26633 is a prime.
26641 is a lucky number.
It is a plaindrome in base 14.
It is not a weakly prime, because it can be changed into another prime (26647) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320 + 13321.
It is an arithmetic number, because the mean of its divisors is an integer number (13321).
226641 is an apocalyptic number.
It is an amenable number.
26641 is a deficient number, since it is larger than the sum of its proper divisors (1).
26641 is an equidigital number, since it uses as much as digits as its factorization.
26641 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 288, while the sum is 19.
The square root of 26641 is about 163.2207094703. The cubic root of 26641 is about 29.8664433400.
The spelling of 26641 in words is "twenty-six thousand, six hundred forty-one".
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