26804 has 6 divisors (see below), whose sum is σ = 46914. Its totient is φ = 13400.

The previous prime is 26801. The next prime is 26813. The reversal of 26804 is 40862.

It can be written as a sum of positive squares in only one way, i.e., 21904 + 4900 = 148^2 + 70^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26801) 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, 3347 + ... + 3354.

It is an arithmetic number, because the mean of its divisors is an integer number (7819).

2²⁶⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

26804 is a deficient number, since it is larger than the sum of its proper divisors (20110).

26804 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 26804 = (40682)₉.

26804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6705 (or 6703 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 26804 is about 163.7192719261. The cubic root of 26804 is about 29.9272310394.

The spelling of 26804 in words is "twenty-six thousand, eight hundred four".