1683831689 has 2 divisors, whose sum is σ = 1683831690. Its totient is φ = 1683831688.

The previous prime is 1683831649. The next prime is 1683831713. The reversal of 1683831689 is 9861383861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1681656064 + 2175625 = 41008^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683831689 - 2¹⁶ = 1683766153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1683831689.

It is not a weakly prime, because it can be changed into another prime (1683831649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841915844 + 841915845.

It is an arithmetic number, because the mean of its divisors is an integer number (841915845).

Almost surely, 2^1683831689 is an apocalyptic number.

It is an amenable number.

1683831689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683831689 is an equidigital number, since it uses as much as digits as its factorization.

1683831689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 53.

The square root of 1683831689 is about 41034.5182620681. The cubic root of 1683831689 is about 1189.6874844910.

The spelling of 1683831689 in words is "one billion, six hundred eighty-three million, eight hundred thirty-one thousand, six hundred eighty-nine".