686808360 has 192 divisors, whose sum is σ = 2560896000. Its totient is φ = 156377088.

The previous prime is 686808349. The next prime is 686808361. The reversal of 686808360 is 63808686.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (686808361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1131177 + ... + 1131783.

It is an arithmetic number, because the mean of its divisors is an integer number (13338000).

Almost surely, 2^686808360 is an apocalyptic number.

686808360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686808360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280448000).

686808360 is an abundant number, since it is smaller than the sum of its proper divisors (1874087640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686808360 is a wasteful number, since it uses less digits than its factorization.

686808360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 686808360 is about 26207.0288281598. The cubic root of 686808360 is about 882.2910172386.

The spelling of 686808360 in words is "six hundred eighty-six million, eight hundred eight thousand, three hundred sixty".