26855887 has 4 divisors (see below), whose sum is σ = 26932320. Its totient is φ = 26779456.

The previous prime is 26855863. The next prime is 26855891. The reversal of 26855887 is 78855862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78855862 = 2 ⋅39427931.

It is a cyclic number.

It is not a de Polignac number, because 26855887 - 2¹¹ = 26853839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26855887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26855687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37687 + ... + 38392.

It is an arithmetic number, because the mean of its divisors is an integer number (6733080).

Almost surely, 2^26855887 is an apocalyptic number.

26855887 is a deficient number, since it is larger than the sum of its proper divisors (76433).

26855887 is an equidigital number, since it uses as much as digits as its factorization.

26855887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76432.

The product of its digits is 1075200, while the sum is 49.

The square root of 26855887 is about 5182.2665890516. The cubic root of 26855887 is about 299.4652956853.

The spelling of 26855887 in words is "twenty-six million, eight hundred fifty-five thousand, eight hundred eighty-seven".