26971648 has 40 divisors (see below), whose sum is σ = 58802040. Its totient is φ = 12257280.

The previous prime is 26971619. The next prime is 26971691. The reversal of 26971648 is 84617962.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238 + ... + 8026.

It is an arithmetic number, because the mean of its divisors is an integer number (1470051).

Almost surely, 2^26971648 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 26971648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29401020).

26971648 is an abundant number, since it is smaller than the sum of its proper divisors (31830392).

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

26971648 is an equidigital number, since it uses as much as digits as its factorization.

26971648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818 (or 4802 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 26971648 is about 5193.4235336625. The cubic root of 26971648 is about 299.8949558160.

It can be divided in two parts, 269 and 71648, that added together give a palindrome (71917).

The spelling of 26971648 in words is "twenty-six million, nine hundred seventy-one thousand, six hundred forty-eight".