109099998 has 48 divisors (see below), whose sum is σ = 272858976. Its totient is φ = 30859200.

The previous prime is 109099997. The next prime is 109100003. The reversal of 109099998 is 899990901.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109099997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8440 + ... + 17012.

It is an arithmetic number, because the mean of its divisors is an integer number (5684562).

Almost surely, 2^109099998 is an apocalyptic number.

109099998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109099998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136429488).

109099998 is an abundant number, since it is smaller than the sum of its proper divisors (163758978).

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

109099998 is a wasteful number, since it uses less digits than its factorization.

109099998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8689 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 54.

The square root of 109099998 is about 10445.0944466769. The cubic root of 109099998 is about 477.8316517620.

The spelling of 109099998 in words is "one hundred nine million, ninety-nine thousand, nine hundred ninety-eight".