26856726 has 64 divisors (see below), whose sum is σ = 61931520. Its totient is φ = 7701120.

The previous prime is 26856689. The next prime is 26856733. The reversal of 26856726 is 62765862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69931 + ... + 70313.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^26856726 is an apocalyptic number.

26856726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26856726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30965760).

26856726 is an abundant number, since it is smaller than the sum of its proper divisors (35074794).

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

26856726 is a wasteful number, since it uses less digits than its factorization.

26856726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its digits is 241920, while the sum is 42.

The square root of 26856726 is about 5182.3475375548. The cubic root of 26856726 is about 299.4684141669.

The spelling of 26856726 in words is "twenty-six million, eight hundred fifty-six thousand, seven hundred twenty-six".