9986423 has 4 divisors (see below), whose sum is σ = 10098720. Its totient is φ = 9874128.

The previous prime is 9986413. The next prime is 9986443. The reversal of 9986423 is 3246899.

It is a happy number.

9986423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9986423 - 2⁴ = 9986407 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 56015 + ... + 56192.

It is an arithmetic number, because the mean of its divisors is an integer number (2524680).

Almost surely, 2^9986423 is an apocalyptic number.

9986423 is a deficient number, since it is larger than the sum of its proper divisors (112297).

9986423 is a wasteful number, since it uses less digits than its factorization.

9986423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112296.

The product of its digits is 93312, while the sum is 41.

The square root of 9986423 is about 3160.1302188359. The cubic root of 9986423 is about 215.3459223109.

The spelling of 9986423 in words is "nine million, nine hundred eighty-six thousand, four hundred twenty-three".