6403443 has 8 divisors (see below), whose sum is σ = 8576448. Its totient is φ = 4249704.

The previous prime is 6403433. The next prime is 6403451. The reversal of 6403443 is 3443046.

6403443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6403443 - 2⁶ = 6403379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6403433) 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 7 ways as a sum of consecutive naturals, for example, 4021 + ... + 5382.

It is an arithmetic number, because the mean of its divisors is an integer number (1072056).

Almost surely, 2^6403443 is an apocalyptic number.

6403443 is a deficient number, since it is larger than the sum of its proper divisors (2173005).

6403443 is a wasteful number, since it uses less digits than its factorization.

6403443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 6403443 is about 2530.5025192637. The cubic root of 6403443 is about 185.6968411059.

Adding to 6403443 its reverse (3443046), we get a palindrome (9846489).

The spelling of 6403443 in words is "six million, four hundred three thousand, four hundred forty-three".