6775399 has 2 divisors, whose sum is σ = 6775400. Its totient is φ = 6775398.

The previous prime is 6775393. The next prime is 6775427. The reversal of 6775399 is 9935776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6775399 - 2¹⁷ = 6644327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6775393) 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 as a sum of consecutive naturals, namely, 3387699 + 3387700.

It is an arithmetic number, because the mean of its divisors is an integer number (3387700).

Almost surely, 2^6775399 is an apocalyptic number.

6775399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6775399 is an equidigital number, since it uses as much as digits as its factorization.

6775399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 46.

The square root of 6775399 is about 2602.9596616160. The cubic root of 6775399 is about 189.2249032682.

It can be divided in two parts, 67 and 75399, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 6775399 in words is "six million, seven hundred seventy-five thousand, three hundred ninety-nine".