6689397103 has 2 divisors, whose sum is σ = 6689397104. Its totient is φ = 6689397102.

The previous prime is 6689397097. The next prime is 6689397149. The reversal of 6689397103 is 3017939866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6689397103 - 2⁹ = 6689396591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6689395103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3344698551 + 3344698552.

It is an arithmetic number, because the mean of its divisors is an integer number (3344698552).

Almost surely, 2^6689397103 is an apocalyptic number.

6689397103 is a deficient number, since it is larger than the sum of its proper divisors (1).

6689397103 is an equidigital number, since it uses as much as digits as its factorization.

6689397103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 6689397103 is about 81788.7345726782. The cubic root of 6689397103 is about 1884.2086472724.

The spelling of 6689397103 in words is "six billion, six hundred eighty-nine million, three hundred ninety-seven thousand, one hundred three".