8644532 has 24 divisors (see below), whose sum is σ = 16735656. Its totient is φ = 3881088.

The previous prime is 8644529. The next prime is 8644553. The reversal of 8644532 is 2354468.

It can be written as a sum of positive squares in 4 ways, for example, as 4343056 + 4301476 = 2084^2 + 2074^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 4170.

It is an arithmetic number, because the mean of its divisors is an integer number (697319).

Almost surely, 2^8644532 is an apocalyptic number.

It is an amenable number.

8644532 is a deficient number, since it is larger than the sum of its proper divisors (8091124).

8644532 is a wasteful number, since it uses less digits than its factorization.

8644532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4545 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 8644532 is about 2940.1584991289. The cubic root of 8644532 is about 205.2329851586.

Subtracting from 8644532 its reverse (2354468), we obtain a square (6290064 = 2508²).

The spelling of 8644532 in words is "eight million, six hundred forty-four thousand, five hundred thirty-two".