3993443 has 2 divisors, whose sum is σ = 3993444. Its totient is φ = 3993442.

The previous prime is 3993427. The next prime is 3993469. The reversal of 3993443 is 3443993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3993443 - 2⁴ = 3993427 is a prime.

It is not a weakly prime, because it can be changed into another prime (3993043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996721 + 1996722.

It is an arithmetic number, because the mean of its divisors is an integer number (1996722).

Almost surely, 2^3993443 is an apocalyptic number.

3993443 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993443 is an equidigital number, since it uses as much as digits as its factorization.

3993443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 35.

The square root of 3993443 is about 1998.3600776637. The cubic root of 3993443 is about 158.6533195192.

The spelling of 3993443 in words is "three million, nine hundred ninety-three thousand, four hundred forty-three".