9804986 has 16 divisors (see below), whose sum is σ = 15218280. Its totient is φ = 4734720.

The previous prime is 9804983. The next prime is 9804997. The reversal of 9804986 is 6894089.

It can be written as a sum of positive squares in 4 ways, for example, as 5880625 + 3924361 = 2425^2 + 1981^2 .

It is a super-2 number, since 2×9804986² = 192275500920392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9804983) 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 7 ways as a sum of consecutive naturals, for example, 8390 + ... + 9486.

Almost surely, 2^9804986 is an apocalyptic number.

9804986 is a deficient number, since it is larger than the sum of its proper divisors (5413294).

9804986 is a wasteful number, since it uses less digits than its factorization.

9804986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 9804986 is about 3131.2914268717. The cubic root of 9804986 is about 214.0337821883.

The spelling of 9804986 in words is "nine million, eight hundred four thousand, nine hundred eighty-six".