855461888 has 52 divisors (see below), whose sum is σ = 1734755508. Its totient is φ = 421724160.

The previous prime is 855461881. The next prime is 855461911. The reversal of 855461888 is 888164558.

It can be written as a sum of positive squares in 2 ways, for example, as 481890304 + 373571584 = 21952^2 + 19328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855461881) 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, 297578 + ... + 300438.

Almost surely, 2^855461888 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 855461888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867377754).

855461888 is an abundant number, since it is smaller than the sum of its proper divisors (879293620).

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

855461888 is an equidigital number, since it uses as much as digits as its factorization.

855461888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2936 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 53.

The square root of 855461888 is about 29248.2800861863. The cubic root of 855461888 is about 949.2928765601.

The spelling of 855461888 in words is "eight hundred fifty-five million, four hundred sixty-one thousand, eight hundred eighty-eight".