3996218243 has 2 divisors, whose sum is σ = 3996218244. Its totient is φ = 3996218242.

The previous prime is 3996218221. The next prime is 3996218249. The reversal of 3996218243 is 3428126993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3996218243 - 2⁸ = 3996217987 is a prime.

It is not a weakly prime, because it can be changed into another prime (3996218249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998109121 + 1998109122.

It is an arithmetic number, because the mean of its divisors is an integer number (1998109122).

Almost surely, 2^3996218243 is an apocalyptic number.

3996218243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3996218243 is an equidigital number, since it uses as much as digits as its factorization.

3996218243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 3996218243 is about 63215.6487192847. The cubic root of 3996218243 is about 1586.9006304757.

The spelling of 3996218243 in words is "three billion, nine hundred ninety-six million, two hundred eighteen thousand, two hundred forty-three".