26856985 has 16 divisors (see below), whose sum is σ = 33770880. Its totient is φ = 20465280.

The previous prime is 26856971. The next prime is 26856989. The reversal of 26856985 is 58965862.

It is not a de Polignac number, because 26856985 - 2⁵ = 26856953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26856989) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46750 + ... + 47320.

It is an arithmetic number, because the mean of its divisors is an integer number (2110680).

Almost surely, 2^26856985 is an apocalyptic number.

It is an amenable number.

26856985 is a deficient number, since it is larger than the sum of its proper divisors (6913895).

26856985 is a wasteful number, since it uses less digits than its factorization.

26856985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 1036800, while the sum is 49.

The square root of 26856985 is about 5182.3725261698. The cubic root of 26856985 is about 299.4693768317.

The spelling of 26856985 in words is "twenty-six million, eight hundred fifty-six thousand, nine hundred eighty-five".