3875785 has 4 divisors (see below), whose sum is σ = 4650948. Its totient is φ = 3100624.

The previous prime is 3875747. The next prime is 3875797. The reversal of 3875785 is 5875783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5875783 = 79 ⋅74377.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 3455881 = 648^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 3875785 - 2⁹ = 3875273 is a prime.

It is a Duffinian 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, 387574 + ... + 387583.

It is an arithmetic number, because the mean of its divisors is an integer number (1162737).

Almost surely, 2^3875785 is an apocalyptic number.

It is an amenable number.

3875785 is a deficient number, since it is larger than the sum of its proper divisors (775163).

3875785 is an equidigital number, since it uses as much as digits as its factorization.

3875785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775162.

The product of its digits is 235200, while the sum is 43.

The square root of 3875785 is about 1968.7013486052. The cubic root of 3875785 is about 157.0796382854.

The spelling of 3875785 in words is "three million, eight hundred seventy-five thousand, seven hundred eighty-five".