26806788 has 84 divisors (see below), whose sum is σ = 72990540. Its totient is φ = 8600256.

The previous prime is 26806783. The next prime is 26806789. The reversal of 26806788 is 88760862.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 20088324 = 2592^2 + 4482^2 .

It is not an unprimeable number, because it can be changed into a prime (26806783) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 84406 + ... + 84722.

It is an arithmetic number, because the mean of its divisors is an integer number (868935).

Almost surely, 2^26806788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26806788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36495270).

26806788 is an abundant number, since it is smaller than the sum of its proper divisors (46183752).

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

26806788 is a wasteful number, since it uses less digits than its factorization.

26806788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 26806788 is about 5177.5272090062. The cubic root of 26806788 is about 299.2826862369.

The spelling of 26806788 in words is "twenty-six million, eight hundred six thousand, seven hundred eighty-eight".