9998212 has 12 divisors (see below), whose sum is σ = 19996480. Its totient is φ = 4284936.

The previous prime is 9998207. The next prime is 9998239. The reversal of 9998212 is 2128999.

9998212 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178512 + ... + 178567.

Almost surely, 2^9998212 is an apocalyptic number.

It is an amenable number.

9998212 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.

9998212 is a wasteful number, since it uses less digits than its factorization.

9998212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357090 (or 357088 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 9998212 is about 3161.9949399074. The cubic root of 9998212 is about 215.4306278071.

The spelling of 9998212 in words is "nine million, nine hundred ninety-eight thousand, two hundred twelve".