3996218227 has 4 divisors (see below), whose sum is σ = 3996588376. Its totient is φ = 3995848080.

The previous prime is 3996218221. The next prime is 3996218243. The reversal of 3996218227 is 7228126993.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3996218227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3996218221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168378 + ... + 190639.

It is an arithmetic number, because the mean of its divisors is an integer number (999147094).

Almost surely, 2^3996218227 is an apocalyptic number.

3996218227 is a deficient number, since it is larger than the sum of its proper divisors (370149).

3996218227 is a wasteful number, since it uses less digits than its factorization.

3996218227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370148.

The product of its digits is 653184, while the sum is 49.

The square root of 3996218227 is about 63215.6485927337. The cubic root of 3996218227 is about 1586.9006283578.

The spelling of 3996218227 in words is "three billion, nine hundred ninety-six million, two hundred eighteen thousand, two hundred twenty-seven".