9855800 has 24 divisors (see below), whose sum is σ = 22915200. Its totient is φ = 3942240.

The previous prime is 9855793. The next prime is 9855817. The reversal of 9855800 is 85589.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 24440 + ... + 24839.

It is an arithmetic number, because the mean of its divisors is an integer number (954800).

Almost surely, 2^9855800 is an apocalyptic number.

It is an amenable number.

9855800 is an abundant number, since it is smaller than the sum of its proper divisors (13059400).

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

9855800 is a wasteful number, since it uses less digits than its factorization.

9855800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49295 (or 49286 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 9855800 is about 3139.3948461447. The cubic root of 9855800 is about 214.4028861830.

The spelling of 9855800 in words is "nine million, eight hundred fifty-five thousand, eight hundred".