3998006 has 8 divisors (see below), whose sum is σ = 6008904. Its totient is φ = 1995040.

The previous prime is 3998003. The next prime is 3998041. The reversal of 3998006 is 6008993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998003) 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, 500 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (751113).

Almost surely, 2^3998006 is an apocalyptic number.

3998006 is a deficient number, since it is larger than the sum of its proper divisors (2010898).

3998006 is a wasteful number, since it uses less digits than its factorization.

3998006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 3998006 is about 1999.5014378589. The cubic root of 3998006 is about 158.7137234984.

The spelling of 3998006 in words is "three million, nine hundred ninety-eight thousand, six".