3857165 has 8 divisors (see below), whose sum is σ = 4984728. Its totient is φ = 2848320.

The previous prime is 3857153. The next prime is 3857167. The reversal of 3857165 is 5617583.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 3798601 = 242^2 + 1949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3857165 - 2¹⁰ = 3856141 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 (3857167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29606 + ... + 29735.

It is an arithmetic number, because the mean of its divisors is an integer number (623091).

Almost surely, 2^3857165 is an apocalyptic number.

It is an amenable number.

3857165 is a deficient number, since it is larger than the sum of its proper divisors (1127563).

3857165 is a wasteful number, since it uses less digits than its factorization.

3857165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59359.

The product of its digits is 25200, while the sum is 35.

The square root of 3857165 is about 1963.9666494113. The cubic root of 3857165 is about 156.8276876736.

The spelling of 3857165 in words is "three million, eight hundred fifty-seven thousand, one hundred sixty-five".