26387856 has 120 divisors (see below), whose sum is σ = 83682144. Its totient is φ = 7983360.

The previous prime is 26387843. The next prime is 26387857. The reversal of 26387856 is 65878362.

26387856 is a `hidden beast` number, since 2 + 638 + 7 + 8 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (26387857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42460 + ... + 43076.

Almost surely, 2^26387856 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 26387856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41841072).

26387856 is an abundant number, since it is smaller than the sum of its proper divisors (57294288).

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

26387856 is a wasteful number, since it uses less digits than its factorization.

26387856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 633 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 26387856 is about 5136.9111341350. The cubic root of 26387856 is about 297.7154468847.

The spelling of 26387856 in words is "twenty-six million, three hundred eighty-seven thousand, eight hundred fifty-six".