683849380 has 12 divisors (see below), whose sum is σ = 1436083740. Its totient is φ = 273539744.

The previous prime is 683849329. The next prime is 683849381. The reversal of 683849380 is 83948386.

It can be written as a sum of positive squares in 2 ways, for example, as 435723876 + 248125504 = 20874^2 + 15752^2 .

It is not an unprimeable number, because it can be changed into a prime (683849381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17096215 + ... + 17096254.

It is an arithmetic number, because the mean of its divisors is an integer number (119673645).

Almost surely, 2^683849380 is an apocalyptic number.

It is an amenable number.

683849380 is an abundant number, since it is smaller than the sum of its proper divisors (752234360).

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

683849380 is a wasteful number, since it uses less digits than its factorization.

683849380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34192478 (or 34192476 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 683849380 is about 26150.5139528844. The cubic root of 683849380 is about 881.0221335974.

The spelling of 683849380 in words is "six hundred eighty-three million, eight hundred forty-nine thousand, three hundred eighty".