6777349 has 2 divisors, whose sum is σ = 6777350. Its totient is φ = 6777348.

The previous prime is 6777317. The next prime is 6777367. The reversal of 6777349 is 9437776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5373124 + 1404225 = 2318^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 6777349 - 2⁵ = 6777317 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 7 + 7⁴ + 7⁶ + 3¹³ + 4³ + 9⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6777049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388674 + 3388675.

It is an arithmetic number, because the mean of its divisors is an integer number (3388675).

Almost surely, 2^6777349 is an apocalyptic number.

It is an amenable number.

6777349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6777349 is an equidigital number, since it uses as much as digits as its factorization.

6777349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 43.

The square root of 6777349 is about 2603.3342082798. The cubic root of 6777349 is about 189.2430548765.

The spelling of 6777349 in words is "six million, seven hundred seventy-seven thousand, three hundred forty-nine".