688364423 has 2 divisors, whose sum is σ = 688364424. Its totient is φ = 688364422.

The previous prime is 688364419. The next prime is 688364429. The reversal of 688364423 is 324463886.

688364423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 688364423 - 2² = 688364419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688364429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344182211 + 344182212.

It is an arithmetic number, because the mean of its divisors is an integer number (344182212).

Almost surely, 2^688364423 is an apocalyptic number.

688364423 is a deficient number, since it is larger than the sum of its proper divisors (1).

688364423 is an equidigital number, since it uses as much as digits as its factorization.

688364423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 44.

The square root of 688364423 is about 26236.6999258672. The cubic root of 688364423 is about 882.9568336709.

The spelling of 688364423 in words is "six hundred eighty-eight million, three hundred sixty-four thousand, four hundred twenty-three".