3996218 has 4 divisors (see below), whose sum is σ = 5994330. Its totient is φ = 1998108.

The previous prime is 3996211. The next prime is 3996221. The reversal of 3996218 is 8126993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2866249 + 1129969 = 1693^2 + 1063^2 .

It is not an unprimeable number, because it can be changed into a prime (3996211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999053 + ... + 999056.

Almost surely, 2^3996218 is an apocalyptic number.

3996218 is a deficient number, since it is larger than the sum of its proper divisors (1998112).

3996218 is a wasteful number, since it uses less digits than its factorization.

3996218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998111.

The product of its digits is 23328, while the sum is 38.

The square root of 3996218 is about 1999.0542764017. The cubic root of 3996218 is about 158.6900598311.

The spelling of 3996218 in words is "three million, nine hundred ninety-six thousand, two hundred eighteen".