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26908 = 227312

26908 has 18 divisors (see below), whose sum is σ = 55608. Its totient is φ = 11160.

The previous prime is 26903. The next prime is 26921. The reversal of 26908 is 80962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26903) by changing a digit.

26908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 5 ways as a sum of consecutive naturals, for example, 853 + ... + 883.

226908 is an apocalyptic number.

26908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27804).

26908 is an abundant number, since it is smaller than the sum of its proper divisors (28700).

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

26908 is a wasteful number, since it uses less digits than its factorization.

26908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 26908 is about 164.0365812860. The cubic root of 26908 is about 29.9658871511.

Adding to 26908 its product of nonzero digits (864), we get a palindrome (27772).

The spelling of 26908 in words is "twenty-six thousand, nine hundred eight".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 961 1922 3844 6727 13454 26908