The Number as per your date of birth is 9, while your phone number is 3. 9 number is rules by Mars and number 3 is ruled by Mercury. They are inimical and unfriendly to each other. This does not appear to be a good combination for promoting business and professional gains. It is therefore better if you change your number to something that suits your date of birth.
Blessings,
Navneet Khanna
Astrologer