3983218 has 4 divisors (see below), whose sum is σ = 5974830. Its totient is φ = 1991608.

The previous prime is 3983201. The next prime is 3983227. The reversal of 3983218 is 8123893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8123893 = 53 ⋅153281.

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 1432809 = 1597^2 + 1197^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995803 + ... + 995806.

Almost surely, 2^3983218 is an apocalyptic number.

3983218 is a deficient number, since it is larger than the sum of its proper divisors (1991612).

3983218 is a wasteful number, since it uses less digits than its factorization.

3983218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991611.

The product of its digits is 10368, while the sum is 34.

The square root of 3983218 is about 1995.8000901894. The cubic root of 3983218 is about 158.5177959698.

The spelling of 3983218 in words is "three million, nine hundred eighty-three thousand, two hundred eighteen".