109799984 has 60 divisors (see below), whose sum is σ = 253302984. Its totient is φ = 45948672.

The previous prime is 109799981. The next prime is 109800001. The reversal of 109799984 is 489997901.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (109799981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32084 + ... + 35340.

Almost surely, 2^109799984 is an apocalyptic number.

109799984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109799984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126651492).

109799984 is an abundant number, since it is smaller than the sum of its proper divisors (143503000).

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

109799984 is a wasteful number, since it uses less digits than its factorization.

109799984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 109799984 is about 10478.5487544793. The cubic root of 109799984 is about 478.8513971933.

The spelling of 109799984 in words is "one hundred nine million, seven hundred ninety-nine thousand, nine hundred eighty-four".