683730431 has 2 divisors, whose sum is σ = 683730432. Its totient is φ = 683730430.

The previous prime is 683730413. The next prime is 683730433. The reversal of 683730431 is 134037386.

It is a happy number.

Together with previous prime (683730413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 683730431 - 2⁶ = 683730367 is a prime.

It is a super-2 number, since 2×683730431² = 934974604550891522, which contains 22 as substring.

Together with 683730433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 683730391 and 683730400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683730433) 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, 341865215 + 341865216.

It is an arithmetic number, because the mean of its divisors is an integer number (341865216).

Almost surely, 2^683730431 is an apocalyptic number.

683730431 is a deficient number, since it is larger than the sum of its proper divisors (1).

683730431 is an equidigital number, since it uses as much as digits as its factorization.

683730431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 683730431 is about 26148.2395392118. The cubic root of 683730431 is about 880.9710488695.

The spelling of 683730431 in words is "six hundred eighty-three million, seven hundred thirty thousand, four hundred thirty-one".