8221376 has 28 divisors (see below), whose sum is σ = 17175480. Its totient is φ = 3893760.

The previous prime is 8221349. The next prime is 8221391. The reversal of 8221376 is 6731228.

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 3 ways as a sum of consecutive naturals, for example, 2165 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (613410).

Almost surely, 2^8221376 is an apocalyptic number.

It is an amenable number.

8221376 is an abundant number, since it is smaller than the sum of its proper divisors (8954104).

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

8221376 is a wasteful number, since it uses less digits than its factorization.

8221376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792 (or 6782 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 8221376 is about 2867.2941948813. The cubic root of 8221376 is about 201.8280404340.

The spelling of 8221376 in words is "eight million, two hundred twenty-one thousand, three hundred seventy-six".