109783897 has 8 divisors (see below), whose sum is σ = 111943944. Its totient is φ = 107641728.

The previous prime is 109783873. The next prime is 109783901. The reversal of 109783897 is 798387901.

It can be written as a sum of positive squares in 4 ways, for example, as 15713296 + 94070601 = 3964^2 + 9699^2 .

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 109783897 - 2¹⁹ = 109259609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109783867) 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, 8283 + ... + 16975.

It is an arithmetic number, because the mean of its divisors is an integer number (13992993).

Almost surely, 2^109783897 is an apocalyptic number.

It is an amenable number.

109783897 is a deficient number, since it is larger than the sum of its proper divisors (2160047).

109783897 is an equidigital number, since it uses as much as digits as its factorization.

109783897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8939.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 109783897 is about 10477.7811105214. The cubic root of 109783897 is about 478.8280102480.

The spelling of 109783897 in words is "one hundred nine million, seven hundred eighty-three thousand, eight hundred ninety-seven".