1683959117 has 2 divisors, whose sum is σ = 1683959118. Its totient is φ = 1683959116.

The previous prime is 1683959087. The next prime is 1683959119. The reversal of 1683959117 is 7119593861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1647223396 + 36735721 = 40586^2 + 6061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683959117 - 2¹⁰ = 1683958093 is a prime.

Together with 1683959119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1683959119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841979558 + 841979559.

It is an arithmetic number, because the mean of its divisors is an integer number (841979559).

Almost surely, 2^1683959117 is an apocalyptic number.

It is an amenable number.

1683959117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683959117 is an equidigital number, since it uses as much as digits as its factorization.

1683959117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 50.

The square root of 1683959117 is about 41036.0709254675. The cubic root of 1683959117 is about 1189.7174945515.

The spelling of 1683959117 in words is "one billion, six hundred eighty-three million, nine hundred fifty-nine thousand, one hundred seventeen".