26671 has 4 divisors (see below), whose sum is σ = 27000. Its totient is φ = 26344.

The previous prime is 26669. The next prime is 26681. The reversal of 26671 is 17662.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17662 = 2 ⋅8831.

It is a cyclic number.

It is not a de Polignac number, because 26671 - 2¹ = 26669 is a prime.

It is a super-2 number, since 2×26671² = 1422684482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60 + ... + 238.

It is an arithmetic number, because the mean of its divisors is an integer number (6750).

2²⁶⁶⁷¹ is an apocalyptic number.

26671 is a deficient number, since it is larger than the sum of its proper divisors (329).

26671 is a wasteful number, since it uses less digits than its factorization.

26671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

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

The square root of 26671 is about 163.3125837160. The cubic root of 26671 is about 29.8776498411.

Subtracting from 26671 its reverse (17662), we obtain a palindrome (9009).

The spelling of 26671 in words is "twenty-six thousand, six hundred seventy-one".