9986394 has 32 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 2988080.

The previous prime is 9986377. The next prime is 9986407. The reversal of 9986394 is 4936899.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4567 + ... + 6389.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^9986394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9986394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11031552).

9986394 is an abundant number, since it is smaller than the sum of its proper divisors (12076710).

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

9986394 is a wasteful number, since it uses less digits than its factorization.

9986394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

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

The square root of 9986394 is about 3160.1256304141. The cubic root of 9986394 is about 215.3457138599.

The spelling of 9986394 in words is "nine million, nine hundred eighty-six thousand, three hundred ninety-four".