9986499 has 6 divisors (see below), whose sum is σ = 14424956. Its totient is φ = 6657660.

The previous prime is 9986489. The next prime is 9986503. The reversal of 9986499 is 9946899.

It is a happy number.

It is not a de Polignac number, because 9986499 - 2⁵ = 9986467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9986479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554797 + ... + 554814.

Almost surely, 2^9986499 is an apocalyptic number.

9986499 is a deficient number, since it is larger than the sum of its proper divisors (4438457).

9986499 is a wasteful number, since it uses less digits than its factorization.

9986499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109617 (or 1109614 counting only the distinct ones).

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

The square root of 9986499 is about 3160.1422436340. The cubic root of 9986499 is about 215.3464685942.

The spelling of 9986499 in words is "nine million, nine hundred eighty-six thousand, four hundred ninety-nine".