683841650 has 12 divisors (see below), whose sum is σ = 1271945562. Its totient is φ = 273536640.

The previous prime is 683841649. The next prime is 683841689. The reversal of 683841650 is 56148386.

It can be written as a sum of positive squares in 3 ways, for example, as 426463801 + 257377849 = 20651^2 + 16043^2 .

It is a junction number, because it is equal to n+sod(n) for n = 683841598 and 683841607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6838367 + ... + 6838466.

Almost surely, 2^683841650 is an apocalyptic number.

683841650 is a deficient number, since it is larger than the sum of its proper divisors (588103912).

683841650 is a wasteful number, since it uses less digits than its factorization.

683841650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13676845 (or 13676840 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 683841650 is about 26150.3661542243. The cubic root of 683841650 is about 881.0188139937.

The spelling of 683841650 in words is "six hundred eighty-three million, eight hundred forty-one thousand, six hundred fifty".