8221850 has 72 divisors (see below), whose sum is σ = 19061280. Its totient is φ = 2583360.

The previous prime is 8221847. The next prime is 8221859. The reversal of 8221850 is 581228.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (8221859) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59081 + ... + 59219.

It is an arithmetic number, because the mean of its divisors is an integer number (264740).

Almost surely, 2^8221850 is an apocalyptic number.

8221850 is an abundant number, since it is smaller than the sum of its proper divisors (10839430).

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

8221850 is a wasteful number, since it uses less digits than its factorization.

8221850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 8221850 is about 2867.3768500147. The cubic root of 8221850 is about 201.8319191299.

The spelling of 8221850 in words is "eight million, two hundred twenty-one thousand, eight hundred fifty".