855585871 has 8 divisors (see below), whose sum is σ = 978026400. Its totient is φ = 733198848.

The previous prime is 855585851. The next prime is 855585883. The reversal of 855585871 is 178585558.

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

It is a cyclic number.

It is not a de Polignac number, because 855585871 - 2¹⁷ = 855454799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855585821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30495 + ... + 51391.

It is an arithmetic number, because the mean of its divisors is an integer number (122253300).

Almost surely, 2^855585871 is an apocalyptic number.

855585871 is a deficient number, since it is larger than the sum of its proper divisors (122440529).

855585871 is a wasteful number, since it uses less digits than its factorization.

855585871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26753.

The product of its digits is 2240000, while the sum is 52.

The square root of 855585871 is about 29250.3995015453. The cubic root of 855585871 is about 949.3387350197.

The spelling of 855585871 in words is "eight hundred fifty-five million, five hundred eighty-five thousand, eight hundred seventy-one".