8221898 has 12 divisors (see below), whose sum is σ = 12607602. Its totient is φ = 4021320.

The previous prime is 8221891. The next prime is 8221903. The reversal of 8221898 is 8981228.

It can be written as a sum of positive squares in only one way, i.e., 8219689 + 2209 = 2867^2 + 47^2 .

It is not an unprimeable number, because it can be changed into a prime (8221891) 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, 3488 + ... + 5348.

Almost surely, 2^8221898 is an apocalyptic number.

8221898 is a deficient number, since it is larger than the sum of its proper divisors (4385704).

8221898 is a wasteful number, since it uses less digits than its factorization.

8221898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1910 counting only the distinct ones).

The product of its digits is 18432, while the sum is 38.

The square root of 8221898 is about 2867.3852200219. The cubic root of 8221898 is about 201.8323119010.

It can be divided in two parts, 8221 and 898, that added together give a palindrome (9119).

The spelling of 8221898 in words is "eight million, two hundred twenty-one thousand, eight hundred ninety-eight".