26855889 has 8 divisors (see below), whose sum is σ = 36963072. Its totient is φ = 17326320.

The previous prime is 26855863. The next prime is 26855891. The reversal of 26855889 is 98855862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26855889 - 2⁷ = 26855761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26855849) 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 7 ways as a sum of consecutive naturals, for example, 144294 + ... + 144479.

It is an arithmetic number, because the mean of its divisors is an integer number (4620384).

Almost surely, 2^26855889 is an apocalyptic number.

It is an amenable number.

26855889 is a deficient number, since it is larger than the sum of its proper divisors (10107183).

26855889 is a wasteful number, since it uses less digits than its factorization.

26855889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288807.

The product of its digits is 1382400, while the sum is 51.

The square root of 26855889 is about 5182.2667820173. The cubic root of 26855889 is about 299.4653031192.

The spelling of 26855889 in words is "twenty-six million, eight hundred fifty-five thousand, eight hundred eighty-nine".