855331776 has 168 divisors, whose sum is σ = 2668280160. Its totient is φ = 260388864.

The previous prime is 855331769. The next prime is 855331787. The reversal of 855331776 is 677133558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 770710 + ... + 771818.

It is an arithmetic number, because the mean of its divisors is an integer number (15882620).

Almost surely, 2^855331776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855331776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334140080).

855331776 is an abundant number, since it is smaller than the sum of its proper divisors (1812948384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855331776 is a wasteful number, since it uses less digits than its factorization.

855331776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1230 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 855331776 is about 29246.0557340644. The cubic root of 855331776 is about 949.2447463593.

The spelling of 855331776 in words is "eight hundred fifty-five million, three hundred thirty-one thousand, seven hundred seventy-six".