683351849 has 2 divisors, whose sum is σ = 683351850. Its totient is φ = 683351848.

The previous prime is 683351831. The next prime is 683351857. The reversal of 683351849 is 948153386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612067600 + 71284249 = 24740^2 + 8443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683351849 is a prime.

It is not a weakly prime, because it can be changed into another prime (683351869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341675924 + 341675925.

It is an arithmetic number, because the mean of its divisors is an integer number (341675925).

Almost surely, 2^683351849 is an apocalyptic number.

It is an amenable number.

683351849 is a deficient number, since it is larger than the sum of its proper divisors (1).

683351849 is an equidigital number, since it uses as much as digits as its factorization.

683351849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 683351849 is about 26140.9993879347. Note that the first 3 decimals coincide. The cubic root of 683351849 is about 880.8084207624.

The spelling of 683351849 in words is "six hundred eighty-three million, three hundred fifty-one thousand, eight hundred forty-nine".