26939856 has 40 divisors (see below), whose sum is σ = 70283200. Its totient is φ = 8891136.

The previous prime is 26939833. The next prime is 26939867. The reversal of 26939856 is 65893962.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220 + ... + 7668.

It is an arithmetic number, because the mean of its divisors is an integer number (1757080).

Almost surely, 2^26939856 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 26939856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35141600).

26939856 is an abundant number, since it is smaller than the sum of its proper divisors (43343344).

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

26939856 is a wasteful number, since it uses less digits than its factorization.

26939856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563 (or 5557 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 26939856 is about 5190.3618370977. The cubic root of 26939856 is about 299.7770788393. Note that the first 3 decimals are identical.

The spelling of 26939856 in words is "twenty-six million, nine hundred thirty-nine thousand, eight hundred fifty-six".