683776197 has 18 divisors (see below), whose sum is σ = 1069498482. Its totient is φ = 420784416.

The previous prime is 683776157. The next prime is 683776217. The reversal of 683776197 is 791677386.

It can be written as a sum of positive squares in 3 ways, for example, as 5225796 + 678550401 = 2286^2 + 26049^2 .

It is not a de Polignac number, because 683776197 - 2¹⁶ = 683710661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683776157) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223258 + ... + 226299.

Almost surely, 2^683776197 is an apocalyptic number.

It is an amenable number.

683776197 is a deficient number, since it is larger than the sum of its proper divisors (385722285).

683776197 is a wasteful number, since it uses less digits than its factorization.

683776197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449589 (or 449573 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 683776197 is about 26149.1146504045. The cubic root of 683776197 is about 880.9907045796.

The spelling of 683776197 in words is "six hundred eighty-three million, seven hundred seventy-six thousand, one hundred ninety-seven".