686303686 has 16 divisors (see below), whose sum is σ = 1041060960. Its totient is φ = 339292800.

The previous prime is 686303669. The next prime is 686303707.

686303686 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 183790 + ... + 187486.

It is an arithmetic number, because the mean of its divisors is an integer number (65066310).

Almost surely, 2^686303686 is an apocalyptic number.

686303686 is a deficient number, since it is larger than the sum of its proper divisors (354757274).

686303686 is a wasteful number, since it uses less digits than its factorization.

686303686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719.

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 686303686 is about 26197.3984586256. The cubic root of 686303686 is about 882.0748587145.

The spelling of 686303686 in words is "six hundred eighty-six million, three hundred three thousand, six hundred eighty-six".