683456450 has 12 divisors (see below), whose sum is σ = 1271229090. Its totient is φ = 273382560.

The previous prime is 683456447. The next prime is 683456483. The reversal of 683456450 is 54654386.

It is a Cunningham number, because it is equal to 26143²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 629859409 + 53597041 = 25097^2 + 7321^2 .

It is a super-3 number, since 3×683456450³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 683456398 and 683456407.

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, 6834515 + ... + 6834614.

Almost surely, 2^683456450 is an apocalyptic number.

683456450 is a deficient number, since it is larger than the sum of its proper divisors (587772640).

683456450 is a wasteful number, since it uses less digits than its factorization.

683456450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13669141 (or 13669136 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 683456450 is about 26143.0000191256. Note that the first 4 decimals coincide. The cubic root of 683456450 is about 880.8533603940.

The spelling of 683456450 in words is "six hundred eighty-three million, four hundred fifty-six thousand, four hundred fifty".