3988222 has 16 divisors (see below), whose sum is σ = 6900192. Its totient is φ = 1693440.

The previous prime is 3988213. The next prime is 3988247. The reversal of 3988222 is 2228893.

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, 322 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (431262).

Almost surely, 2^3988222 is an apocalyptic number.

3988222 is a deficient number, since it is larger than the sum of its proper divisors (2911970).

3988222 is a wasteful number, since it uses less digits than its factorization.

3988222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643.

The product of its digits is 13824, while the sum is 34.

The square root of 3988222 is about 1997.0533292829. The cubic root of 3988222 is about 158.5841486119.

The spelling of 3988222 in words is "three million, nine hundred eighty-eight thousand, two hundred twenty-two".