3999999

3999999 is an integer. It is preceded by 3999998 and followed by 4000000. In scientific notation, it can be expressed as approximately 3.999999 x 10^6. It is a composite number, meaning it has divisors other than 1 and itself. Its prime factorization is 3 x 7 x 11 x 13 x 31 x 41 x 211. The sum of its digits is 3 + 9 + 9 + 9 + 9 + 9 + 9 = 57. When written out in English, it is three million nine hundred ninety-nine thousand nine hundred ninety-nine. The number 3999999 is close to the round number 4000000, differing by only one. This proximity often leads to its appearance in contexts where approximations or near-threshold values are discussed. For example, in some counting systems or measurements, a value of 3999999 might be considered practically equivalent to 4000000 for certain purposes. It does not hold any widely recognized special mathematical significance in its own right, beyond being a large integer with specific prime factors.