855836900 has 72 divisors (see below), whose sum is σ = 1952583360. Its totient is φ = 324973440.

The previous prime is 855836897. The next prime is 855836903. The reversal of 855836900 is 9638558.

It is an interprime number because it is at equal distance from previous prime (855836897) and next prime (855836903).

It is a super-2 number, since 2×855836900² = 1464913598803220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855836903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318362 + ... + 321038.

Almost surely, 2^855836900 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 855836900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976291680).

855836900 is an abundant number, since it is smaller than the sum of its proper divisors (1096746460).

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

855836900 is a wasteful number, since it uses less digits than its factorization.

855836900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 855836900 is about 29254.6902222533. The cubic root of 855836900 is about 949.4315713081.

The spelling of 855836900 in words is "eight hundred fifty-five million, eight hundred thirty-six thousand, nine hundred".