686363 has 2 divisors, whose sum is σ = 686364. Its totient is φ = 686362.

The previous prime is 686359. The next prime is 686417. The reversal of 686363 is 363686.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 686363 - 2² = 686359 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (686333) 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, 343181 + 343182.

It is an arithmetic number, because the mean of its divisors is an integer number (343182).

2⁶⁸⁶³⁶³ is an apocalyptic number.

686363 is a deficient number, since it is larger than the sum of its proper divisors (1).

686363 is an equidigital number, since it uses as much as digits as its factorization.

686363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 686363 is about 828.4702770770. The cubic root of 686363 is about 88.2100269176.

The spelling of 686363 in words is "six hundred eighty-six thousand, three hundred sixty-three".