3857895 has 48 divisors (see below), whose sum is σ = 7443360. Its totient is φ = 1889280.

The previous prime is 3857891. The next prime is 3857911. The reversal of 3857895 is 5987583.

It is not a de Polignac number, because 3857895 - 2² = 3857891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3857895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94075 + ... + 94115.

It is an arithmetic number, because the mean of its divisors is an integer number (155070).

Almost surely, 2^3857895 is an apocalyptic number.

3857895 is a deficient number, since it is larger than the sum of its proper divisors (3585465).

3857895 is a wasteful number, since it uses less digits than its factorization.

3857895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 66 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 3857895 is about 1964.1524889886. The cubic root of 3857895 is about 156.8375806901.

The spelling of 3857895 in words is "three million, eight hundred fifty-seven thousand, eight hundred ninety-five".