In this investigation, a mixed linguistic-statistical-numerical analysis is performed on the text of the holy Quran in order to look for any possible presence of hidden numerical structure. In our case, we focused our interest on number seven, which seems to have a long historical and religious presence in the holy book. This task could be seen as a pure statistical analysis using some simplified linguistic rules and numerical properties to check the possibility of a Divine origin (i.e. beyond the human capacities) of the book. The dataset consists of the 2 forms of the Quran: once with diacritics and another time without diacritics.The first text is considered as our reference book since it consists in the authentic Quran that is preserved by the Muslim religious community and respecting the Saudi Quran edition. The second one is similar to the first book, except that we have removed the diacritics to speed up the word search process.Several simplified experiments of computational linguistics, which are based on the multiplicity by seven, are performed and commented on the Holy Scripture. Results are outstanding and surprising: in fact, the seven-based structure has been discovered in many parts of the holy Quran. This result shows that the possibility of a human origin for such a fascinating structure is quite impossible. In fact, the advanced scientific structure of the Quran antedates the period of the Prophet by many centuries.