855938800 has 60 divisors (see below), whose sum is σ = 2066918800. Its totient is φ = 340623360.

The previous prime is 855938789. The next prime is 855938801. The reversal of 855938800 is 8839558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855938801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74224 + ... + 84976.

Almost surely, 2^855938800 is an apocalyptic number.

855938800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855938800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033459400).

855938800 is an abundant number, since it is smaller than the sum of its proper divisors (1210980000).

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

855938800 is a wasteful number, since it uses less digits than its factorization.

855938800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 855938800 is about 29256.4317714926. The cubic root of 855938800 is about 949.4692510879.

The spelling of 855938800 in words is "eight hundred fifty-five million, nine hundred thirty-eight thousand, eight hundred".