6779943 has 12 divisors (see below), whose sum is σ = 10156328. Its totient is φ = 4519800.

The previous prime is 6779921. The next prime is 6779951. The reversal of 6779943 is 3499776.

It is not a de Polignac number, because 6779943 - 2⁵ = 6779911 is a prime.

It is a Duffinian number.

6779943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779953) 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 11 ways as a sum of consecutive naturals, for example, 13708 + ... + 14193.

Almost surely, 2^6779943 is an apocalyptic number.

6779943 is a deficient number, since it is larger than the sum of its proper divisors (3376385).

6779943 is an equidigital number, since it uses as much as digits as its factorization.

6779943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27916 (or 27904 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 6779943 is about 2603.8323678762. The cubic root of 6779943 is about 189.2671957743.

The spelling of 6779943 in words is "six million, seven hundred seventy-nine thousand, nine hundred forty-three".