8555872 has 48 divisors (see below), whose sum is σ = 18394992. Its totient is φ = 3893760.

The previous prime is 8555861. The next prime is 8555873. The reversal of 8555872 is 2785558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8555873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54418 + ... + 54574.

It is an arithmetic number, because the mean of its divisors is an integer number (383229).

Almost surely, 2^8555872 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 8555872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9197496).

8555872 is an abundant number, since it is smaller than the sum of its proper divisors (9839120).

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

8555872 is a wasteful number, since it uses less digits than its factorization.

8555872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 303 counting only the distinct ones).

The product of its digits is 112000, while the sum is 40.

The square root of 8555872 is about 2925.0422219175. The cubic root of 8555872 is about 204.5289362314.

The spelling of 8555872 in words is "eight million, five hundred fifty-five thousand, eight hundred seventy-two".