855876471 has 4 divisors (see below), whose sum is σ = 1141168632. Its totient is φ = 570584312.

The previous prime is 855876457. The next prime is 855876491. The reversal of 855876471 is 174678558.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855876471 is a prime.

It is a super-3 number, since 3×855876471³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855876491) 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, 142646076 + ... + 142646081.

It is an arithmetic number, because the mean of its divisors is an integer number (285292158).

Almost surely, 2^855876471 is an apocalyptic number.

855876471 is a deficient number, since it is larger than the sum of its proper divisors (285292161).

855876471 is a wasteful number, since it uses less digits than its factorization.

855876471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285292160.

The product of its digits is 1881600, while the sum is 51.

The square root of 855876471 is about 29255.3665333388. The cubic root of 855876471 is about 949.4462039162.

The spelling of 855876471 in words is "eight hundred fifty-five million, eight hundred seventy-six thousand, four hundred seventy-one".