26447 has 4 divisors (see below), whose sum is σ = 27000. Its totient is φ = 25896.

The previous prime is 26437. The next prime is 26449. The reversal of 26447 is 74462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26447 - 2⁴ = 26431 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26449) 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, 197 + ... + 302.

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

2²⁶⁴⁴⁷ is an apocalyptic number.

26447 is a deficient number, since it is larger than the sum of its proper divisors (553).

26447 is an equidigital number, since it uses as much as digits as its factorization.

26447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its digits is 1344, while the sum is 23.

The square root of 26447 is about 162.6253362794. The cubic root of 26447 is about 29.7937707503.

The spelling of 26447 in words is "twenty-six thousand, four hundred forty-seven".