9916424 has 48 divisors (see below), whose sum is σ = 22192380. Its totient is φ = 4139520.

The previous prime is 9916411. The next prime is 9916433. The reversal of 9916424 is 4246199.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 3062500 = 2618^2 + 1750^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15764 + ... + 16380.

Almost surely, 2^9916424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9916424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11096190).

9916424 is an abundant number, since it is smaller than the sum of its proper divisors (12275956).

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

9916424 is a wasteful number, since it uses less digits than its factorization.

9916424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 667 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 9916424 is about 3149.0354078670. The cubic root of 9916424 is about 214.8415923490.

The spelling of 9916424 in words is "nine million, nine hundred sixteen thousand, four hundred twenty-four".