7389443 has 2 divisors, whose sum is σ = 7389444. Its totient is φ = 7389442.

The previous prime is 7389433. The next prime is 7389451. The reversal of 7389443 is 3449837.

7389443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7389443 - 2¹⁴ = 7373059 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 7389397 and 7389406.

It is not a weakly prime, because it can be changed into another prime (7389433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3694721 + 3694722.

It is an arithmetic number, because the mean of its divisors is an integer number (3694722).

Almost surely, 2^7389443 is an apocalyptic number.

7389443 is a deficient number, since it is larger than the sum of its proper divisors (1).

7389443 is an equidigital number, since it uses as much as digits as its factorization.

7389443 is an evil number, because the sum of its binary digits is even.

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

The square root of 7389443 is about 2718.3529940021. The cubic root of 7389443 is about 194.7768035800.

It can be divided in two parts, 73894 and 43, that added together give a palindrome (73937).

The spelling of 7389443 in words is "seven million, three hundred eighty-nine thousand, four hundred forty-three".