Is 6639001 a Prime Number

YES
6639001 is a prime number.
6639001 is not a composite number, it only has factor 1 and itself.

Prime Index of 6639001

Prime Numbe Index: 453634 th
The 6639001 st prime number: 116229991
Hex format: 654D99
Binary format: 0b11001010100110110011001

Check Numbers related to 6639001