998866208 has 54 divisors (see below), whose sum is σ = 2034576873. Its totient is φ = 482716800.

The previous prime is 998866201. The next prime is 998866213. The reversal of 998866208 is 802668899.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

998866208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 805878544 + 192987664 = 28388^2 + 13892^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22348.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998866201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6614933 + ... + 6615083.

Almost surely, 2^998866208 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 998866208

998866208 is an abundant number, since it is smaller than the sum of its proper divisors (1035710665).

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

998866208 is an equidigital number, since it uses as much as digits as its factorization.

998866208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 998866208 is about 31604.8446919139. The cubic root of 998866208 is about 999.6219264117.

The spelling of 998866208 in words is "nine hundred ninety-eight million, eight hundred sixty-six thousand, two hundred eight".