8685680 has 20 divisors (see below), whose sum is σ = 20194392. Its totient is φ = 3474240.

The previous prime is 8685667. The next prime is 8685683. The reversal of 8685680 is 865868.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8685683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54206 + ... + 54365.

Almost surely, 2^8685680 is an apocalyptic number.

8685680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8685680 is an abundant number, since it is smaller than the sum of its proper divisors (11508712).

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

8685680 is a wasteful number, since it uses less digits than its factorization.

8685680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108584 (or 108578 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 8685680 is about 2947.1477736958. The cubic root of 8685680 is about 205.5581063991.

The spelling of 8685680 in words is "eight million, six hundred eighty-five thousand, six hundred eighty".