26856705 has 16 divisors (see below), whose sum is σ = 43041600. Its totient is φ = 14299968.

The previous prime is 26856689. The next prime is 26856733. The reversal of 26856705 is 50765862.

It is a happy number.

It is not a de Polignac number, because 26856705 - 2⁴ = 26856689 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 11746 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (2690100).

Almost surely, 2^26856705 is an apocalyptic number.

It is an amenable number.

26856705 is a deficient number, since it is larger than the sum of its proper divisors (16184895).

26856705 is a wasteful number, since it uses less digits than its factorization.

26856705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 26856705 is about 5182.3455114456. The cubic root of 26856705 is about 299.4683361128.

The spelling of 26856705 in words is "twenty-six million, eight hundred fifty-six thousand, seven hundred five".