8521232 has 20 divisors (see below), whose sum is σ = 16623936. Its totient is φ = 4231200.

The previous prime is 8521231. The next prime is 8521237. The reversal of 8521232 is 2321258.

It is a super-2 number, since 2×8521232² = 145222789595648, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 8521198 and 8521207.

It is not an unprimeable number, because it can be changed into a prime (8521231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653 + ... + 4179.

Almost surely, 2^8521232 is an apocalyptic number.

It is an amenable number.

8521232 is a deficient number, since it is larger than the sum of its proper divisors (8102704).

8521232 is a wasteful number, since it uses less digits than its factorization.

8521232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686 (or 3680 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 8521232 is about 2919.1149343594. The cubic root of 8521232 is about 204.2525387119.

The spelling of 8521232 in words is "eight million, five hundred twenty-one thousand, two hundred thirty-two".