26988786 has 48 divisors (see below), whose sum is σ = 65864448. Its totient is φ = 7912800.

The previous prime is 26988769. The next prime is 26988791. The reversal of 26988786 is 68788962.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3940 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (1372176).

Almost surely, 2^26988786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26988786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32932224).

26988786 is an abundant number, since it is smaller than the sum of its proper divisors (38875662).

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

26988786 is a wasteful number, since it uses less digits than its factorization.

26988786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447 (or 4444 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 26988786 is about 5195.0732429871. The cubic root of 26988786 is about 299.9584609153.

The spelling of 26988786 in words is "twenty-six million, nine hundred eighty-eight thousand, seven hundred eighty-six".