9855432 has 80 divisors (see below), whose sum is σ = 28139760. Its totient is φ = 3221856.

The previous prime is 9855413. The next prime is 9855437. The reversal of 9855432 is 2345589.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9855437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43303 + ... + 43529.

It is an arithmetic number, because the mean of its divisors is an integer number (351747).

Almost surely, 2^9855432 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 9855432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14069880).

9855432 is an abundant number, since it is smaller than the sum of its proper divisors (18284328).

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

9855432 is a wasteful number, since it uses less digits than its factorization.

9855432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 299 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 9855432 is about 3139.3362355759. The cubic root of 9855432 is about 214.4002176615.

The spelling of 9855432 in words is "nine million, eight hundred fifty-five thousand, four hundred thirty-two".