6431943 has 16 divisors (see below), whose sum is σ = 9927680. Its totient is φ = 3627936.

The previous prime is 6431891. The next prime is 6431951. The reversal of 6431943 is 3491346.

It is not a de Polignac number, because 6431943 - 2⁸ = 6431687 is a prime.

It is a super-4 number, since 4×6431943⁴ (a number of 28 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6431943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (620480).

Almost surely, 2^6431943 is an apocalyptic number.

6431943 is a deficient number, since it is larger than the sum of its proper divisors (3495737).

6431943 is a wasteful number, since it uses less digits than its factorization.

6431943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its digits is 7776, while the sum is 30.

The square root of 6431943 is about 2536.1275598834. The cubic root of 6431943 is about 185.9719289352.

The spelling of 6431943 in words is "six million, four hundred thirty-one thousand, nine hundred forty-three".