109843829 has 2 divisors, whose sum is σ = 109843830. Its totient is φ = 109843828.

The previous prime is 109843813. The next prime is 109843847. The reversal of 109843829 is 928348901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70593604 + 39250225 = 8402^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 109843829 - 2⁴ = 109843813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109843829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109843229) 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 as a sum of consecutive naturals, namely, 54921914 + 54921915.

It is an arithmetic number, because the mean of its divisors is an integer number (54921915).

Almost surely, 2^109843829 is an apocalyptic number.

It is an amenable number.

109843829 is a deficient number, since it is larger than the sum of its proper divisors (1).

109843829 is an equidigital number, since it uses as much as digits as its factorization.

109843829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 109843829 is about 10480.6406769815. The cubic root of 109843829 is about 478.9151265455.

The spelling of 109843829 in words is "one hundred nine million, eight hundred forty-three thousand, eight hundred twenty-nine".