9986842 has 8 divisors (see below), whose sum is σ = 15299136. Its totient is φ = 4887132.

The previous prime is 9986831. The next prime is 9986849. The reversal of 9986842 is 2486899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9986792 and 9986801.

It is not an unprimeable number, because it can be changed into a prime (9986849) 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, 53028 + ... + 53215.

It is an arithmetic number, because the mean of its divisors is an integer number (1912392).

Almost surely, 2^9986842 is an apocalyptic number.

9986842 is a deficient number, since it is larger than the sum of its proper divisors (5312294).

9986842 is a wasteful number, since it uses less digits than its factorization.

9986842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106292.

The product of its digits is 248832, while the sum is 46.

The square root of 9986842 is about 3160.1965128770. The cubic root of 9986842 is about 215.3489340225.

The spelling of 9986842 in words is "nine million, nine hundred eighty-six thousand, eight hundred forty-two".