26864856 has 48 divisors (see below), whose sum is σ = 73858200. Its totient is φ = 8819712.

The previous prime is 26864843. The next prime is 26864899. The reversal of 26864856 is 65846862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2040 + ... + 7608.

Almost surely, 2^26864856 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 26864856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36929100).

26864856 is an abundant number, since it is smaller than the sum of its proper divisors (46993344).

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

26864856 is a wasteful number, since it uses less digits than its factorization.

26864856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648 (or 5641 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 26864856 is about 5183.1318717548. The cubic root of 26864856 is about 299.4986292246.

The spelling of 26864856 in words is "twenty-six million, eight hundred sixty-four thousand, eight hundred fifty-six".