683135993 has 2 divisors, whose sum is σ = 683135994. Its totient is φ = 683135992.

The previous prime is 683135927. The next prime is 683136001. The reversal of 683135993 is 399531386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506565049 + 176570944 = 22507^2 + 13288^2 .

It is a cyclic number.

It is not a de Polignac number, because 683135993 - 2¹⁴ = 683119609 is a prime.

It is not a weakly prime, because it can be changed into another prime (683135093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341567996 + 341567997.

It is an arithmetic number, because the mean of its divisors is an integer number (341567997).

Almost surely, 2^683135993 is an apocalyptic number.

It is an amenable number.

683135993 is a deficient number, since it is larger than the sum of its proper divisors (1).

683135993 is an equidigital number, since it uses as much as digits as its factorization.

683135993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 47.

The square root of 683135993 is about 26136.8703750086. The cubic root of 683135993 is about 880.7156682488.

It can be divided in two parts, 6831 and 35993, that added together give a palindrome (42824).

The spelling of 683135993 in words is "six hundred eighty-three million, one hundred thirty-five thousand, nine hundred ninety-three".