26646 has 8 divisors (see below), whose sum is σ = 53304. Its totient is φ = 8880.

The previous prime is 26641. The next prime is 26647. The reversal of 26646 is 64662.

26646 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

26646 is an admirable 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.

26646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (6663).

2²⁶⁶⁴⁶ is an apocalyptic number.

26646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26652).

26646 is a wasteful number, since it uses less digits than its factorization.

26646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446.

The product of its digits is 1728, while the sum is 24.

The square root of 26646 is about 163.2360254356. The cubic root of 26646 is about 29.8683116742.

The spelling of 26646 in words is "twenty-six thousand, six hundred forty-six".