998213852 has 6 divisors (see below), whose sum is σ = 1746874248. Its totient is φ = 499106924.

The previous prime is 998213851. The next prime is 998213873. The reversal of 998213852 is 258312899.

It is a super-3 number, since 3×998213852³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 998213797 and 998213806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998213851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124776728 + ... + 124776735.

It is an arithmetic number, because the mean of its divisors is an integer number (291145708).

Almost surely, 2^998213852 is an apocalyptic number.

It is an amenable number.

998213852 is a deficient number, since it is larger than the sum of its proper divisors (748660396).

998213852 is a wasteful number, since it uses less digits than its factorization.

998213852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249553467 (or 249553465 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 998213852 is about 31594.5224999524. The cubic root of 998213852 is about 999.4042625006.

The spelling of 998213852 in words is "nine hundred ninety-eight million, two hundred thirteen thousand, eight hundred fifty-two".