6939799 has 2 divisors, whose sum is σ = 6939800. Its totient is φ = 6939798.

The previous prime is 6939797. The next prime is 6939817. The reversal of 6939799 is 9979396.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6939799 - 2¹ = 6939797 is a prime.

Together with 6939797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6939797) 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, 3469899 + 3469900.

It is an arithmetic number, because the mean of its divisors is an integer number (3469900).

Almost surely, 2^6939799 is an apocalyptic number.

6939799 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939799 is an equidigital number, since it uses as much as digits as its factorization.

6939799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 826686, while the sum is 52.

The square root of 6939799 is about 2634.3498249094. The cubic root of 6939799 is about 190.7431559514.

It can be divided in two parts, 69397 and 99, that added together give a palindrome (69496).

The spelling of 6939799 in words is "six million, nine hundred thirty-nine thousand, seven hundred ninety-nine".