998111110 has 16 divisors (see below), whose sum is σ = 1797500016. Its totient is φ = 399044448.

The previous prime is 998111077. The next prime is 998111111. The reversal of 998111110 is 11111899.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998111111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3129 + ... + 44788.

It is an arithmetic number, because the mean of its divisors is an integer number (112343751).

Almost surely, 2^998111110 is an apocalyptic number.

998111110 is a deficient number, since it is larger than the sum of its proper divisors (799388906).

998111110 is a wasteful number, since it uses less digits than its factorization.

998111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50007.

The product of its (nonzero) digits is 648, while the sum is 31.

The square root of 998111110 is about 31592.8965117160. The cubic root of 998111110 is about 999.3699731495.

The spelling of 998111110 in words is "nine hundred ninety-eight million, one hundred eleven thousand, one hundred ten".