109798949 has 4 divisors (see below), whose sum is σ = 118245036. Its totient is φ = 101352864.

The previous prime is 109798933. The next prime is 109798951. The reversal of 109798949 is 949897901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9498724 + 100300225 = 3082^2 + 10015^2 .

It is a cyclic number.

It is not a de Polignac number, because 109798949 - 2⁴ = 109798933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109798894 and 109798903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109798979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4223024 + ... + 4223049.

It is an arithmetic number, because the mean of its divisors is an integer number (29561259).

Almost surely, 2^109798949 is an apocalyptic number.

It is an amenable number.

109798949 is a deficient number, since it is larger than the sum of its proper divisors (8446087).

109798949 is an equidigital number, since it uses as much as digits as its factorization.

109798949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446086.

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

The square root of 109798949 is about 10478.4993677530. The cubic root of 109798949 is about 478.8498926007.

The spelling of 109798949 in words is "one hundred nine million, seven hundred ninety-eight thousand, nine hundred forty-nine".