6006999 has 4 divisors (see below), whose sum is σ = 8009336. Its totient is φ = 4004664.

The previous prime is 6006991. The next prime is 6007003. The reversal of 6006999 is 9996006.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6006999 - 2³ = 6006991 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6006991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001164 + ... + 1001169.

It is an arithmetic number, because the mean of its divisors is an integer number (2002334).

Almost surely, 2^6006999 is an apocalyptic number.

6006999 is a deficient number, since it is larger than the sum of its proper divisors (2002337).

6006999 is a wasteful number, since it uses less digits than its factorization.

6006999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002336.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 6006999 is about 2450.9179912841. The cubic root of 6006999 is about 181.7826875334.

The spelling of 6006999 in words is "six million, six thousand, nine hundred ninety-nine".