8644272 has 80 divisors (see below), whose sum is σ = 27498240. Its totient is φ = 2278656.

The previous prime is 8644261. The next prime is 8644301. The reversal of 8644272 is 2724468.

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 3379 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (343728).

Almost surely, 2^8644272 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 8644272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13749120).

8644272 is an abundant number, since it is smaller than the sum of its proper divisors (18853968).

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

8644272 is a wasteful number, since it uses less digits than its factorization.

8644272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2004 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 8644272 is about 2940.1142834931. The cubic root of 8644272 is about 205.2309275531.

The spelling of 8644272 in words is "eight million, six hundred forty-four thousand, two hundred seventy-two".