9986516 has 6 divisors (see below), whose sum is σ = 17476410. Its totient is φ = 4993256.

The previous prime is 9986507. The next prime is 9986539. The reversal of 9986516 is 6156899.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 3984016 = 2450^2 + 1996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248311 + ... + 1248318.

It is an arithmetic number, because the mean of its divisors is an integer number (2912735).

Almost surely, 2^9986516 is an apocalyptic number.

It is an amenable number.

9986516 is a deficient number, since it is larger than the sum of its proper divisors (7489894).

9986516 is a wasteful number, since it uses less digits than its factorization.

9986516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496633 (or 2496631 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 9986516 is about 3160.1449333852. The cubic root of 9986516 is about 215.3465907887.

The spelling of 9986516 in words is "nine million, nine hundred eighty-six thousand, five hundred sixteen".