6309943 has 4 divisors (see below), whose sum is σ = 6480520. Its totient is φ = 6139368.

The previous prime is 6309931. The next prime is 6309959. The reversal of 6309943 is 3499036.

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

It is a cyclic number.

It is not a de Polignac number, because 6309943 - 2⁵ = 6309911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6309899 and 6309908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6309913) 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, 85233 + ... + 85306.

It is an arithmetic number, because the mean of its divisors is an integer number (1620130).

Almost surely, 2^6309943 is an apocalyptic number.

6309943 is a deficient number, since it is larger than the sum of its proper divisors (170577).

6309943 is a wasteful number, since it uses less digits than its factorization.

6309943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170576.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 6309943 is about 2511.9599917196. The cubic root of 6309943 is about 184.7885873245.

The spelling of 6309943 in words is "six million, three hundred nine thousand, nine hundred forty-three".