3968243 has 4 divisors (see below), whose sum is σ = 4012920. Its totient is φ = 3923568.

The previous prime is 3968231. The next prime is 3968291. The reversal of 3968243 is 3428693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3428693 = 31 ⋅110603.

It is a cyclic number.

It is not a de Polignac number, because 3968243 - 2⁴ = 3968227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3968203) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 22205 + ... + 22382.

It is an arithmetic number, because the mean of its divisors is an integer number (1003230).

Almost surely, 2^3968243 is an apocalyptic number.

3968243 is a deficient number, since it is larger than the sum of its proper divisors (44677).

3968243 is an equidigital number, since it uses as much as digits as its factorization.

3968243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44676.

The product of its digits is 31104, while the sum is 35.

The square root of 3968243 is about 1992.0449292122. The cubic root of 3968243 is about 158.3188960674.

The spelling of 3968243 in words is "three million, nine hundred sixty-eight thousand, two hundred forty-three".