9987065 has 24 divisors (see below), whose sum is σ = 13825728. Its totient is φ = 6867360.

The previous prime is 9987031. The next prime is 9987071. The reversal of 9987065 is 5607899.

It is not a de Polignac number, because 9987065 - 2⁶ = 9987001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19604 + ... + 20106.

It is an arithmetic number, because the mean of its divisors is an integer number (576072).

Almost surely, 2^9987065 is an apocalyptic number.

9987065 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9987065 is a deficient number, since it is larger than the sum of its proper divisors (3838663).

9987065 is a wasteful number, since it uses less digits than its factorization.

9987065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 9987065 is about 3160.2317952960. The cubic root of 9987065 is about 215.3505368800.

The spelling of 9987065 in words is "nine million, nine hundred eighty-seven thousand, sixty-five".