683899680 has 384 divisors, whose sum is σ = 2438553600. Its totient is φ = 160358400.

The previous prime is 683899673. The next prime is 683899691. The reversal of 683899680 is 86998386.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 683899680.

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 63 ways as a sum of consecutive naturals, for example, 11591491 + ... + 11591549.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2^683899680 is an apocalyptic number.

683899680 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 683899680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219276800).

683899680 is an abundant number, since it is smaller than the sum of its proper divisors (1754653920).

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

683899680 is a wasteful number, since it uses less digits than its factorization.

683899680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 683899680 is about 26151.4756753802. The cubic root of 683899680 is about 881.0437340297.

The spelling of 683899680 in words is "six hundred eighty-three million, eight hundred ninety-nine thousand, six hundred eighty".