688341583 has 2 divisors, whose sum is σ = 688341584. Its totient is φ = 688341582.

The previous prime is 688341571. The next prime is 688341623. The reversal of 688341583 is 385143886.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-688341583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688341523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344170791 + 344170792.

It is an arithmetic number, because the mean of its divisors is an integer number (344170792).

Almost surely, 2^688341583 is an apocalyptic number.

688341583 is a deficient number, since it is larger than the sum of its proper divisors (1).

688341583 is an equidigital number, since it uses as much as digits as its factorization.

688341583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 46.

The square root of 688341583 is about 26236.2646541004. The cubic root of 688341583 is about 882.9470680311.

The spelling of 688341583 in words is "six hundred eighty-eight million, three hundred forty-one thousand, five hundred eighty-three".