6945779 has 2 divisors, whose sum is σ = 6945780. Its totient is φ = 6945778.

The previous prime is 6945749. The next prime is 6945803. The reversal of 6945779 is 9775496.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6945779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6945709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472889 + 3472890.

It is an arithmetic number, because the mean of its divisors is an integer number (3472890).

Almost surely, 2^6945779 is an apocalyptic number.

6945779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945779 is an equidigital number, since it uses as much as digits as its factorization.

6945779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 6945779 is about 2635.4845854226. The cubic root of 6945779 is about 190.7979277874.

The spelling of 6945779 in words is "six million, nine hundred forty-five thousand, seven hundred seventy-nine".