854841906 has 48 divisors (see below), whose sum is σ = 1974375000. Its totient is φ = 266371584.

The previous prime is 854841877. The next prime is 854841937. The reversal of 854841906 is 609148458.

854841906 is a `hidden beast` number, since 85 + 484 + 1 + 90 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 731432025 + 123409881 = 27045^2 + 11109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36220 + ... + 54968.

Almost surely, 2^854841906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854841906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987187500).

854841906 is an abundant number, since it is smaller than the sum of its proper divisors (1119533094).

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

854841906 is a wasteful number, since it uses less digits than its factorization.

854841906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18923 (or 18920 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 854841906 is about 29237.6795590895. The cubic root of 854841906 is about 949.0634929795.

The spelling of 854841906 in words is "eight hundred fifty-four million, eight hundred forty-one thousand, nine hundred six".