6779213 has 4 divisors (see below), whose sum is σ = 7747680. Its totient is φ = 5810748.

The previous prime is 6779207. The next prime is 6779231. The reversal of 6779213 is 3129776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6779213 - 2⁴ = 6779197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779203) 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 3 ways as a sum of consecutive naturals, for example, 484223 + ... + 484236.

It is an arithmetic number, because the mean of its divisors is an integer number (1936920).

Almost surely, 2^6779213 is an apocalyptic number.

It is an amenable number.

6779213 is a deficient number, since it is larger than the sum of its proper divisors (968467).

6779213 is an equidigital number, since it uses as much as digits as its factorization.

6779213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968466.

The product of its digits is 15876, while the sum is 35.

The square root of 6779213 is about 2603.6921861080. The cubic root of 6779213 is about 189.2604026979.

The spelling of 6779213 in words is "six million, seven hundred seventy-nine thousand, two hundred thirteen".