9986442 has 8 divisors (see below), whose sum is σ = 19972896. Its totient is φ = 3328812.

The previous prime is 9986413. The next prime is 9986443. The reversal of 9986442 is 2446899.

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

9986442 is an admirable number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9986394 and 9986403.

It is not an unprimeable number, because it can be changed into a prime (9986443) 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, 832198 + ... + 832209.

It is an arithmetic number, because the mean of its divisors is an integer number (2496612).

Almost surely, 2^9986442 is an apocalyptic number.

9986442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9986442 is a wasteful number, since it uses less digits than its factorization.

9986442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664412.

The product of its digits is 124416, while the sum is 42.

The square root of 9986442 is about 3160.1332250397. The cubic root of 9986442 is about 215.3460588819.

The spelling of 9986442 in words is "nine million, nine hundred eighty-six thousand, four hundred forty-two".