3865163 has 4 divisors (see below), whose sum is σ = 3922920. Its totient is φ = 3807408.

The previous prime is 3865157. The next prime is 3865187. The reversal of 3865163 is 3615683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3615683 = 857 ⋅4219.

It is a cyclic number.

It is not a de Polignac number, because 3865163 - 2¹⁰ = 3864139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3865123) 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, 28778 + ... + 28911.

It is an arithmetic number, because the mean of its divisors is an integer number (980730).

Almost surely, 2^3865163 is an apocalyptic number.

3865163 is a deficient number, since it is larger than the sum of its proper divisors (57757).

3865163 is an equidigital number, since it uses as much as digits as its factorization.

3865163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756.

The product of its digits is 12960, while the sum is 32.

The square root of 3865163 is about 1966.0017802637. The cubic root of 3865163 is about 156.9360091904.

The spelling of 3865163 in words is "three million, eight hundred sixty-five thousand, one hundred sixty-three".