9986493 has 32 divisors (see below), whose sum is σ = 15249024. Its totient is φ = 5808000.

The previous prime is 9986489. The next prime is 9986503. The reversal of 9986493 is 3946899.

It is a happy number.

9986493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9986493 - 2² = 9986489 is a prime.

It is a Curzon number.

9986493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9986413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163683 + ... + 163743.

It is an arithmetic number, because the mean of its divisors is an integer number (476532).

Almost surely, 2^9986493 is an apocalyptic number.

It is an amenable number.

9986493 is a deficient number, since it is larger than the sum of its proper divisors (5262531).

9986493 is a wasteful number, since it uses less digits than its factorization.

9986493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 116 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 9986493 is about 3160.1412943095. The cubic root of 9986493 is about 215.3464254666.

The spelling of 9986493 in words is "nine million, nine hundred eighty-six thousand, four hundred ninety-three".