10443421 has 2 divisors, whose sum is σ = 10443422. Its totient is φ = 10443420.

The previous prime is 10443401. The next prime is 10443427. The reversal of 10443421 is 12434401.

10443421 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 can be written as a sum of positive squares in only one way, i.e., 10272025 + 171396 = 3205^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 10443421 - 2⁹ = 10442909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10443427) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5221710 + 5221711.

It is an arithmetic number, because the mean of its divisors is an integer number (5221711).

Almost surely, 2^10443421 is an apocalyptic number.

It is an amenable number.

10443421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10443421 is an equidigital number, since it uses as much as digits as its factorization.

10443421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 10443421 is about 3231.6282273801. The cubic root of 10443421 is about 218.5819328379.

Adding to 10443421 its reverse (12434401), we get a palindrome (22877822).

It can be divided in two parts, 1044 and 3421, that added together give a triangular number (4465 = T₉₄).

The spelling of 10443421 in words is "ten million, four hundred forty-three thousand, four hundred twenty-one".