685260000 has 420 divisors, whose sum is σ = 2581386192. Its totient is φ = 178848000.

The previous prime is 685259989. The next prime is 685260013. The reversal of 685260000 is 62586.

685260000 is a `hidden beast` number, since 6 + 8 + 52 + 600 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 69 ways as a sum of consecutive naturals, for example, 14579977 + ... + 14580023.

Almost surely, 2^685260000 is an apocalyptic number.

685260000 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 685260000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290693096).

685260000 is an abundant number, since it is smaller than the sum of its proper divisors (1896126192).

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

685260000 is an frugal number, since it uses more digits than its factorization.

685260000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 685260000 is about 26177.4712300482. The cubic root of 685260000 is about 881.6274978440.

The spelling of 685260000 in words is "six hundred eighty-five million, two hundred sixty thousand".