6405343 has 4 divisors (see below), whose sum is σ = 7320400. Its totient is φ = 5490288.

The previous prime is 6405331. The next prime is 6405353. The reversal of 6405343 is 3435046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6405343 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457518 + ... + 457531.

It is an arithmetic number, because the mean of its divisors is an integer number (1830100).

Almost surely, 2^6405343 is an apocalyptic number.

6405343 is a deficient number, since it is larger than the sum of its proper divisors (915057).

6405343 is an equidigital number, since it uses as much as digits as its factorization.

6405343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915056.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 6405343 is about 2530.8779109234. The cubic root of 6405343 is about 185.7152056590.

The spelling of 6405343 in words is "six million, four hundred five thousand, three hundred forty-three".