6684223397 has 2 divisors, whose sum is σ = 6684223398. Its totient is φ = 6684223396.

The previous prime is 6684223367. The next prime is 6684223411. The reversal of 6684223397 is 7933224866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5727311041 + 956912356 = 75679^2 + 30934^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684223397 - 2⁶ = 6684223333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6684223327) 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, 3342111698 + 3342111699.

It is an arithmetic number, because the mean of its divisors is an integer number (3342111699).

Almost surely, 2^6684223397 is an apocalyptic number.

It is an amenable number.

6684223397 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684223397 is an equidigital number, since it uses as much as digits as its factorization.

6684223397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 50.

The square root of 6684223397 is about 81757.0999791455. The cubic root of 6684223397 is about 1883.7227611406.

The spelling of 6684223397 in words is "six billion, six hundred eighty-four million, two hundred twenty-three thousand, three hundred ninety-seven".