103785785 has 4 divisors (see below), whose sum is σ = 124542948. Its totient is φ = 83028624.

The previous prime is 103785763. The next prime is 103785791. The reversal of 103785785 is 587587301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587587301 = 7 ⋅83941043.

It can be written as a sum of positive squares in 2 ways, for example, as 36348841 + 67436944 = 6029^2 + 8212^2 .

It is a cyclic number.

It is not a de Polignac number, because 103785785 - 2²⁴ = 87008569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10378574 + ... + 10378583.

It is an arithmetic number, because the mean of its divisors is an integer number (31135737).

Almost surely, 2^103785785 is an apocalyptic number.

It is an amenable number.

103785785 is a deficient number, since it is larger than the sum of its proper divisors (20757163).

103785785 is an equidigital number, since it uses as much as digits as its factorization.

103785785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20757162.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 103785785 is about 10187.5308588490. The cubic root of 103785785 is about 469.9438366570.

The spelling of 103785785 in words is "one hundred three million, seven hundred eighty-five thousand, seven hundred eighty-five".