683746121 has 2 divisors, whose sum is σ = 683746122. Its totient is φ = 683746120.

The previous prime is 683746097. The next prime is 683746127. The reversal of 683746121 is 121647386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573075721 + 110670400 = 23939^2 + 10520^2 .

It is a cyclic number.

It is not a de Polignac number, because 683746121 - 2¹⁴ = 683729737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (683746127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341873060 + 341873061.

It is an arithmetic number, because the mean of its divisors is an integer number (341873061).

Almost surely, 2^683746121 is an apocalyptic number.

It is an amenable number.

683746121 is a deficient number, since it is larger than the sum of its proper divisors (1).

683746121 is an equidigital number, since it uses as much as digits as its factorization.

683746121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 683746121 is about 26148.5395576885. The cubic root of 683746121 is about 880.9777875535.

The spelling of 683746121 in words is "six hundred eighty-three million, seven hundred forty-six thousand, one hundred twenty-one".