109857017 has 8 divisors (see below), whose sum is σ = 113804040. Its totient is φ = 105920640.

The previous prime is 109856987. The next prime is 109857029. The reversal of 109857017 is 710758901.

It can be written as a sum of positive squares in 4 ways, for example, as 633616 + 109223401 = 796^2 + 10451^2 .

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 109857017 - 2⁶ = 109856953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109857047) 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 7 ways as a sum of consecutive naturals, for example, 22517 + ... + 26957.

It is an arithmetic number, because the mean of its divisors is an integer number (14225505).

Almost surely, 2^109857017 is an apocalyptic number.

It is an amenable number.

109857017 is a deficient number, since it is larger than the sum of its proper divisors (3947023).

109857017 is an equidigital number, since it uses as much as digits as its factorization.

109857017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 109857017 is about 10481.2698181089. The cubic root of 109857017 is about 478.9342921797.

The spelling of 109857017 in words is "one hundred nine million, eight hundred fifty-seven thousand, seventeen".