8221696 has 88 divisors (see below), whose sum is σ = 19913216. Its totient is φ = 3317760.

The previous prime is 8221669. The next prime is 8221721. The reversal of 8221696 is 6961228.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222190 + ... + 222226.

Almost surely, 2^8221696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8221696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9956608).

8221696 is an abundant number, since it is smaller than the sum of its proper divisors (11691520).

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

8221696 is a wasteful number, since it uses less digits than its factorization.

8221696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 77 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 8221696 is about 2867.3499960765. The cubic root of 8221696 is about 201.8306589793.

The spelling of 8221696 in words is "eight million, two hundred twenty-one thousand, six hundred ninety-six".