8221368 has 32 divisors (see below), whose sum is σ = 20624400. Its totient is φ = 2731008.

The previous prime is 8221349. The next prime is 8221391. The reversal of 8221368 is 8631228.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11880 + ... + 12552.

Almost surely, 2^8221368 is an apocalyptic number.

It is an amenable number.

8221368 is an abundant number, since it is smaller than the sum of its proper divisors (12403032).

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

8221368 is a wasteful number, since it uses less digits than its factorization.

8221368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1187 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 8221368 is about 2867.2927998375. The cubic root of 8221368 is about 201.8279749695.

The spelling of 8221368 in words is "eight million, two hundred twenty-one thousand, three hundred sixty-eight".