9855444 has 24 divisors (see below), whose sum is σ = 24349248. Its totient is φ = 3091840.

The previous prime is 9855437. The next prime is 9855451. The reversal of 9855444 is 4445589.

It is an interprime number because it is at equal distance from previous prime (9855437) and next prime (9855451).

It is a nialpdrome in base 10.

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 7 ways as a sum of consecutive naturals, for example, 23952 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (1014552).

Almost surely, 2^9855444 is an apocalyptic number.

It is an amenable number.

9855444 is an abundant number, since it is smaller than the sum of its proper divisors (14493804).

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

9855444 is a wasteful number, since it uses less digits than its factorization.

9855444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48335 (or 48333 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 9855444 is about 3139.3381468074. The cubic root of 9855444 is about 214.4003046795.

The spelling of 9855444 in words is "nine million, eight hundred fifty-five thousand, four hundred forty-four".