998951912 has 32 divisors (see below), whose sum is σ = 2186161920. Its totient is φ = 419012160.

The previous prime is 998951911. The next prime is 998951953. The reversal of 998951912 is 219159899.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (998951911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187139 + ... + 192402.

It is an arithmetic number, because the mean of its divisors is an integer number (68317560).

Almost surely, 2^998951912 is an apocalyptic number.

It is an amenable number.

998951912 is an abundant number, since it is smaller than the sum of its proper divisors (1187210008).

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

998951912 is a wasteful number, since it uses less digits than its factorization.

998951912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379601 (or 379597 counting only the distinct ones).

The product of its digits is 524880, while the sum is 53.

The square root of 998951912 is about 31606.2005309085. The cubic root of 998951912 is about 999.6505152079.

The spelling of 998951912 in words is "nine hundred ninety-eight million, nine hundred fifty-one thousand, nine hundred twelve".