6698899 has 2 divisors, whose sum is σ = 6698900. Its totient is φ = 6698898.

The previous prime is 6698897. The next prime is 6698903. The reversal of 6698899 is 9988966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6698899 - 2¹ = 6698897 is a prime.

Together with 6698897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6698897) 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, 3349449 + 3349450.

It is an arithmetic number, because the mean of its divisors is an integer number (3349450).

Almost surely, 2^6698899 is an apocalyptic number.

6698899 is a deficient number, since it is larger than the sum of its proper divisors (1).

6698899 is an equidigital number, since it uses as much as digits as its factorization.

6698899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 55.

The square root of 6698899 is about 2588.2231356666. The cubic root of 6698899 is about 188.5100361225.

The spelling of 6698899 in words is "six million, six hundred ninety-eight thousand, eight hundred ninety-nine".