8644481 has 16 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 7898880.

The previous prime is 8644477. The next prime is 8644499. The reversal of 8644481 is 1844468.

It is a cyclic number.

It is not a de Polignac number, because 8644481 - 2² = 8644477 is a prime.

It is a super-2 number, since 2×8644481² = 149454103518722, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (24576) is a multiple of the sum of its prime divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8644451) by changing a digit.

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, 83876 + ... + 83978.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^8644481 is an apocalyptic number.

It is an amenable number.

8644481 is a deficient number, since it is larger than the sum of its proper divisors (790399).

8644481 is a wasteful number, since it uses less digits than its factorization.

8644481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its digits is 24576, while the sum is 35.

The square root of 8644481 is about 2940.1498261143. The cubic root of 8644481 is about 205.2325815546.

The spelling of 8644481 in words is "eight million, six hundred forty-four thousand, four hundred eighty-one".