686729996 has 12 divisors (see below), whose sum is σ = 1265029080. Its totient is φ = 325293120.

The previous prime is 686729941. The next prime is 686730001. The reversal of 686729996 is 699927686.

686729996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4517885 + ... + 4518036.

It is an arithmetic number, because the mean of its divisors is an integer number (105419090).

Almost surely, 2^686729996 is an apocalyptic number.

It is an amenable number.

686729996 is a deficient number, since it is larger than the sum of its proper divisors (578299084).

686729996 is a wasteful number, since it uses less digits than its factorization.

686729996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035944 (or 9035942 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 62.

The square root of 686729996 is about 26205.5336904250. The cubic root of 686729996 is about 882.2574598510.

It can be divided in two parts, 6867 and 29996, that added together give a palindrome (36863).

The spelling of 686729996 in words is "six hundred eighty-six million, seven hundred twenty-nine thousand, nine hundred ninety-six".