6779317 has 4 divisors (see below), whose sum is σ = 6786540. Its totient is φ = 6772096.

The previous prime is 6779303. The next prime is 6779321. The reversal of 6779317 is 7139776.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1461681 + 5317636 = 1209^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 6779317 - 2⁷ = 6779189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6779317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779347) 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, 1948 + ... + 4165.

It is an arithmetic number, because the mean of its divisors is an integer number (1696635).

Almost surely, 2^6779317 is an apocalyptic number.

It is an amenable number.

6779317 is a deficient number, since it is larger than the sum of its proper divisors (7223).

6779317 is a wasteful number, since it uses less digits than its factorization.

6779317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222.

The product of its digits is 55566, while the sum is 40.

The square root of 6779317 is about 2603.7121576703. The cubic root of 6779317 is about 189.2613705085.

The spelling of 6779317 in words is "six million, seven hundred seventy-nine thousand, three hundred seventeen".