9987146 has 16 divisors (see below), whose sum is σ = 16654848. Its totient is φ = 4460400.

The previous prime is 9987121. The next prime is 9987157. The reversal of 9987146 is 6417899.

It is a junction number, because it is equal to n+sod(n) for n = 9987097 and 9987106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (1040928).

Almost surely, 2^9987146 is an apocalyptic number.

9987146 is a deficient number, since it is larger than the sum of its proper divisors (6667702).

9987146 is a wasteful number, since it uses less digits than its factorization.

9987146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12437.

The product of its digits is 108864, while the sum is 44.

The square root of 9987146 is about 3160.2446107857. The cubic root of 9987146 is about 215.3511190780.

The spelling of 9987146 in words is "nine million, nine hundred eighty-seven thousand, one hundred forty-six".