683816880 has 80 divisors (see below), whose sum is σ = 2122435584. Its totient is φ = 182127360.

The previous prime is 683816849. The next prime is 683816911. The reversal of 683816880 is 88618386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (683816849) and next prime (683816911).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 308737 + ... + 310943.

Almost surely, 2^683816880 is an apocalyptic number.

683816880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

683816880 is an abundant number, since it is smaller than the sum of its proper divisors (1438618704).

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

683816880 is a wasteful number, since it uses less digits than its factorization.

683816880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 683816880 is about 26149.8925428002. The cubic root of 683816880 is about 881.0081764923.

The spelling of 683816880 in words is "six hundred eighty-three million, eight hundred sixteen thousand, eight hundred eighty".