3871775 has 6 divisors (see below), whose sum is σ = 4801032. Its totient is φ = 3097400.

The previous prime is 3871759. The next prime is 3871781. The reversal of 3871775 is 5771783.

It is not a de Polignac number, because 3871775 - 2⁴ = 3871759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77411 + ... + 77460.

It is an arithmetic number, because the mean of its divisors is an integer number (800172).

Almost surely, 2^3871775 is an apocalyptic number.

3871775 is a deficient number, since it is larger than the sum of its proper divisors (929257).

3871775 is a wasteful number, since it uses less digits than its factorization.

3871775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154881 (or 154876 counting only the distinct ones).

The product of its digits is 41160, while the sum is 38.

The square root of 3871775 is about 1967.6826471766. The cubic root of 3871775 is about 157.0254465360.

It can be divided in two parts, 3871 and 775, that multiplied together give a triangular number (3000025 = T₂₄₄₉).

The spelling of 3871775 in words is "three million, eight hundred seventy-one thousand, seven hundred seventy-five".