8221652 has 18 divisors (see below), whose sum is σ = 14605038. Its totient is φ = 4049568.

The previous prime is 8221651. The next prime is 8221657. The reversal of 8221652 is 2561228.

It can be written as a sum of positive squares in 3 ways, for example, as 4519876 + 3701776 = 2126^2 + 1924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47438 + ... + 47610.

It is an arithmetic number, because the mean of its divisors is an integer number (811391).

Almost surely, 2^8221652 is an apocalyptic number.

It is an amenable number.

8221652 is a deficient number, since it is larger than the sum of its proper divisors (6383386).

8221652 is a wasteful number, since it uses less digits than its factorization.

8221652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 284 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 8221652 is about 2867.3423234766. The cubic root of 8221652 is about 201.8302989333.

The spelling of 8221652 in words is "eight million, two hundred twenty-one thousand, six hundred fifty-two".