8221632 has 28 divisors (see below), whose sum is σ = 21753576. Its totient is φ = 2740480.

The previous prime is 8221627. The next prime is 8221651. The reversal of 8221632 is 2361228.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

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 3 ways as a sum of consecutive naturals, for example, 21219 + ... + 21602.

Almost surely, 2^8221632 is an apocalyptic number.

It is an amenable number.

8221632 is an abundant number, since it is smaller than the sum of its proper divisors (13531944).

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

8221632 is a wasteful number, since it uses less digits than its factorization.

8221632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42836 (or 42826 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 8221632 is about 2867.3388359243. The cubic root of 8221632 is about 201.8301352756.

The spelling of 8221632 in words is "eight million, two hundred twenty-one thousand, six hundred thirty-two".