6388006 has 8 divisors (see below), whose sum is σ = 9597024. Its totient is φ = 3189000.

The previous prime is 6387977. The next prime is 6388021. The reversal of 6388006 is 6008836.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625 + ... + 3628.

It is an arithmetic number, because the mean of its divisors is an integer number (1199628).

Almost surely, 2^6388006 is an apocalyptic number.

6388006 is the 1599-th centered pentagonal number.

6388006 is a deficient number, since it is larger than the sum of its proper divisors (3209018).

6388006 is a wasteful number, since it uses less digits than its factorization.

6388006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6388006 is about 2527.4504940750. The cubic root of 6388006 is about 185.5474991157.

The spelling of 6388006 in words is "six million, three hundred eighty-eight thousand, six".