9986994 has 12 divisors (see below), whose sum is σ = 21638526. Its totient is φ = 3328992.

The previous prime is 9986993. The next prime is 9987001. The reversal of 9986994 is 4996899.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 3560769 = 2535^2 + 1887^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9986994.

It is not an unprimeable number, because it can be changed into a prime (9986993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277399 + ... + 277434.

Almost surely, 2^9986994 is an apocalyptic number.

9986994 is an abundant number, since it is smaller than the sum of its proper divisors (11651532).

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

9986994 is a wasteful number, since it uses less digits than its factorization.

9986994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554841 (or 554838 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 9986994 is about 3160.2205619229. The cubic root of 9986994 is about 215.3500265558.

The spelling of 9986994 in words is "nine million, nine hundred eighty-six thousand, nine hundred ninety-four".