3857135 has 4 divisors (see below), whose sum is σ = 4628568. Its totient is φ = 3085704.

The previous prime is 3857107. The next prime is 3857137. The reversal of 3857135 is 5317583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5317583 = 17 ⋅312799.

It is a cyclic number.

It is not a de Polignac number, because 3857135 - 2¹² = 3853039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857137) 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, 385709 + ... + 385718.

It is an arithmetic number, because the mean of its divisors is an integer number (1157142).

Almost surely, 2^3857135 is an apocalyptic number.

3857135 is a deficient number, since it is larger than the sum of its proper divisors (771433).

3857135 is an equidigital number, since it uses as much as digits as its factorization.

3857135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771432.

The product of its digits is 12600, while the sum is 32.

The square root of 3857135 is about 1963.9590117923. The cubic root of 3857135 is about 156.8272810846.

The spelling of 3857135 in words is "three million, eight hundred fifty-seven thousand, one hundred thirty-five".