26855387 has 4 divisors (see below), whose sum is σ = 28921200. Its totient is φ = 24789576.

The previous prime is 26855383. The next prime is 26855399. The reversal of 26855387 is 78355862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26855387 - 2² = 26855383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26855383) 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, 1032887 + ... + 1032912.

It is an arithmetic number, because the mean of its divisors is an integer number (7230300).

Almost surely, 2^26855387 is an apocalyptic number.

26855387 is a deficient number, since it is larger than the sum of its proper divisors (2065813).

26855387 is a wasteful number, since it uses less digits than its factorization.

26855387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065812.

The product of its digits is 403200, while the sum is 44.

The square root of 26855387 is about 5182.2183473875. The cubic root of 26855387 is about 299.4634372030.

It can be divided in two parts, 268 and 55387, that added together give a palindrome (55655).

The spelling of 26855387 in words is "twenty-six million, eight hundred fifty-five thousand, three hundred eighty-seven".