6779771 has 2 divisors, whose sum is σ = 6779772. Its totient is φ = 6779770.

The previous prime is 6779743. The next prime is 6779777. The reversal of 6779771 is 1779776.

6779771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6779771 - 2¹⁴ = 6763387 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6779777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389885 + 3389886.

It is an arithmetic number, because the mean of its divisors is an integer number (3389886).

Almost surely, 2^6779771 is an apocalyptic number.

6779771 is a deficient number, since it is larger than the sum of its proper divisors (1).

6779771 is an equidigital number, since it uses as much as digits as its factorization.

6779771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129654, while the sum is 44.

The square root of 6779771 is about 2603.7993394269. The cubic root of 6779771 is about 189.2655952578.

The spelling of 6779771 in words is "six million, seven hundred seventy-nine thousand, seven hundred seventy-one".