16990006 has 8 divisors (see below), whose sum is σ = 27801864. Its totient is φ = 7722720.

The previous prime is 16990003. The next prime is 16990007. The reversal of 16990006 is 60009961.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16990006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16990003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386115 + ... + 386158.

It is an arithmetic number, because the mean of its divisors is an integer number (3475233).

Almost surely, 2^16990006 is an apocalyptic number.

16990006 is a deficient number, since it is larger than the sum of its proper divisors (10811858).

16990006 is a wasteful number, since it uses less digits than its factorization.

16990006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772286.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16990006 is about 4121.8934969259. The cubic root of 16990006 is about 257.0777621530.

Adding to 16990006 its reverse (60009961), we get a palindrome (76999967).

The spelling of 16990006 in words is "sixteen million, nine hundred ninety thousand, six".