109821097 has 8 divisors (see below), whose sum is σ = 113410880. Its totient is φ = 106278480.

The previous prime is 109821079. The next prime is 109821119. The reversal of 109821097 is 790128901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109821097 - 2¹¹ = 109819049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109821017) 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, 7029 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (14176360).

Almost surely, 2^109821097 is an apocalyptic number.

It is an amenable number.

109821097 is a deficient number, since it is larger than the sum of its proper divisors (3589783).

109821097 is a wasteful number, since it uses less digits than its factorization.

109821097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23583.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 109821097 is about 10479.5561451810. The cubic root of 109821097 is about 478.8820873666.

Adding to 109821097 its reverse (790128901), we get a palindrome (899949998).

The spelling of 109821097 in words is "one hundred nine million, eight hundred twenty-one thousand, ninety-seven".