9987006 has 8 divisors (see below), whose sum is σ = 19974024. Its totient is φ = 3329000.

The previous prime is 9987001. The next prime is 9987013. The reversal of 9987006 is 6007899.

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

9987006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9987001) 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, 832245 + ... + 832256.

It is an arithmetic number, because the mean of its divisors is an integer number (2496753).

Almost surely, 2^9987006 is an apocalyptic number.

9987006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9987006 is a wasteful number, since it uses less digits than its factorization.

9987006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664506.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 9987006 is about 3160.2224605239. Note that the first 3 decimals coincide. The cubic root of 9987006 is about 215.3501128080.

The spelling of 9987006 in words is "nine million, nine hundred eighty-seven thousand, six".