3863785 has 4 divisors (see below), whose sum is σ = 4636548. Its totient is φ = 3091024.

The previous prime is 3863773. The next prime is 3863789. The reversal of 3863785 is 5873683.

3863785 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5873683 = 109 ⋅53887.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 1364224 = 1581^2 + 1168^2 .

It is a cyclic number.

It is not a de Polignac number, because 3863785 - 2⁹ = 3863273 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3863789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386374 + ... + 386383.

It is an arithmetic number, because the mean of its divisors is an integer number (1159137).

Almost surely, 2^3863785 is an apocalyptic number.

It is an amenable number.

3863785 is a deficient number, since it is larger than the sum of its proper divisors (772763).

3863785 is an equidigital number, since it uses as much as digits as its factorization.

3863785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772762.

The product of its digits is 120960, while the sum is 40.

The square root of 3863785 is about 1965.6512915571. The cubic root of 3863785 is about 156.9173568053.

The spelling of 3863785 in words is "three million, eight hundred sixty-three thousand, seven hundred eighty-five".