855323877 has 4 divisors (see below), whose sum is σ = 1140431840. Its totient is φ = 570215916.

The previous prime is 855323869. The next prime is 855323891. The reversal of 855323877 is 778323558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 855323877 - 2³ = 855323869 is a prime.

It is a super-3 number, since 3×855323877³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855323827) 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, 142553977 + ... + 142553982.

It is an arithmetic number, because the mean of its divisors is an integer number (285107960).

Almost surely, 2^855323877 is an apocalyptic number.

It is an amenable number.

855323877 is a deficient number, since it is larger than the sum of its proper divisors (285107963).

855323877 is a wasteful number, since it uses less digits than its factorization.

855323877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285107962.

The product of its digits is 1411200, while the sum is 48.

The square root of 855323877 is about 29245.9206899014. The cubic root of 855323877 is about 949.2418242545.

The spelling of 855323877 in words is "eight hundred fifty-five million, three hundred twenty-three thousand, eight hundred seventy-seven".