683707680 has 144 divisors (see below), whose sum is σ = 2340321984. Its totient is φ = 181762560.

The previous prime is 683707657. The next prime is 683707693. The reversal of 683707680 is 86707386.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706557 + ... + 707523.

It is an arithmetic number, because the mean of its divisors is an integer number (16252236).

Almost surely, 2^683707680 is an apocalyptic number.

683707680 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 683707680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170160992).

683707680 is an abundant number, since it is smaller than the sum of its proper divisors (1656614304).

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

683707680 is a wasteful number, since it uses less digits than its factorization.

683707680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 683707680 is about 26147.8044967450. The cubic root of 683707680 is about 880.9612773798.

The spelling of 683707680 in words is "six hundred eighty-three million, seven hundred seven thousand, six hundred eighty".