9998222 has 8 divisors (see below), whose sum is σ = 16151016. Its totient is φ = 4614552.

The previous prime is 9998207. The next prime is 9998239. The reversal of 9998222 is 2228999.

It is a happy number.

9998222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×9998222² = 199928886322568, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9998222.

It is a congruent number.

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, 192248 + ... + 192299.

It is an arithmetic number, because the mean of its divisors is an integer number (2018877).

Almost surely, 2^9998222 is an apocalyptic number.

9998222 is a deficient number, since it is larger than the sum of its proper divisors (6152794).

9998222 is a wasteful number, since it uses less digits than its factorization.

9998222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384562.

The product of its digits is 46656, while the sum is 41.

The square root of 9998222 is about 3161.9965211872. The cubic root of 9998222 is about 215.4306996301.

The spelling of 9998222 in words is "nine million, nine hundred ninety-eight thousand, two hundred twenty-two".