7938443 has 2 divisors, whose sum is σ = 7938444. Its totient is φ = 7938442.

The previous prime is 7938407. The next prime is 7938457. The reversal of 7938443 is 3448397.

It is a strong prime.

It is an emirp because it is prime and its reverse (3448397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7938443 - 2¹⁴ = 7922059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7938397 and 7938406.

It is not a weakly prime, because it can be changed into another prime (7935443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969221 + 3969222.

It is an arithmetic number, because the mean of its divisors is an integer number (3969222).

Almost surely, 2^7938443 is an apocalyptic number.

7938443 is a deficient number, since it is larger than the sum of its proper divisors (1).

7938443 is an equidigital number, since it uses as much as digits as its factorization.

7938443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 7938443 is about 2817.5242678635. The cubic root of 7938443 is about 199.4857036298.

The spelling of 7938443 in words is "seven million, nine hundred thirty-eight thousand, four hundred forty-three".