6686363 has 2 divisors, whose sum is σ = 6686364. Its totient is φ = 6686362.

The previous prime is 6686357. The next prime is 6686413. The reversal of 6686363 is 3636866.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6686363 - 2⁶ = 6686299 is a prime.

It is not a weakly prime, because it can be changed into another prime (6686333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343181 + 3343182.

It is an arithmetic number, because the mean of its divisors is an integer number (3343182).

Almost surely, 2^6686363 is an apocalyptic number.

6686363 is a deficient number, since it is larger than the sum of its proper divisors (1).

6686363 is an equidigital number, since it uses as much as digits as its factorization.

6686363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 38.

The square root of 6686363 is about 2585.8002629747. The cubic root of 6686363 is about 188.3923731329.

The spelling of 6686363 in words is "six million, six hundred eighty-six thousand, three hundred sixty-three".