9968218 has 8 divisors (see below), whose sum is σ = 16102548. Its totient is φ = 4600704.

The previous prime is 9968209. The next prime is 9968219. The reversal of 9968218 is 8128699.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9840769 + 127449 = 3137^2 + 357^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9968219) 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, 191671 + ... + 191722.

Almost surely, 2^9968218 is an apocalyptic number.

9968218 is a deficient number, since it is larger than the sum of its proper divisors (6134330).

9968218 is a wasteful number, since it uses less digits than its factorization.

9968218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383408.

The product of its digits is 62208, while the sum is 43.

The square root of 9968218 is about 3157.2484856280. The cubic root of 9968218 is about 215.2149859660.

The spelling of 9968218 in words is "nine million, nine hundred sixty-eight thousand, two hundred eighteen".