688416103 has 2 divisors, whose sum is σ = 688416104. Its totient is φ = 688416102.

The previous prime is 688416083. The next prime is 688416107. The reversal of 688416103 is 301614886.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-688416103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688416107) 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, 344208051 + 344208052.

It is an arithmetic number, because the mean of its divisors is an integer number (344208052).

Almost surely, 2^688416103 is an apocalyptic number.

688416103 is a deficient number, since it is larger than the sum of its proper divisors (1).

688416103 is an equidigital number, since it uses as much as digits as its factorization.

688416103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 688416103 is about 26237.6847873436. The cubic root of 688416103 is about 882.9789295578.

The spelling of 688416103 in words is "six hundred eighty-eight million, four hundred sixteen thousand, one hundred three".