686560000 has 180 divisors, whose sum is σ = 1960334992. Its totient is φ = 235008000.

The previous prime is 686559997. The next prime is 686560027. The reversal of 686560000 is 65686.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1119694 + ... + 1120306.

Almost surely, 2^686560000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980167496).

686560000 is an abundant number, since it is smaller than the sum of its proper divisors (1273774992).

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

686560000 is an frugal number, since it uses more digits than its factorization.

686560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 686560000 is about 26202.2899762597. The cubic root of 686560000 is about 882.1846546159.

It can be divided in two parts, 686 and 560000, that multiplied together give a 4-th power (384160000 = 140⁴).

The spelling of 686560000 in words is "six hundred eighty-six million, five hundred sixty thousand".