4163855 has 4 divisors (see below), whose sum is σ = 4996632. Its totient is φ = 3331080.

The previous prime is 4163843. The next prime is 4163857. The reversal of 4163855 is 5583614.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5583614 = 2 ⋅2791807.

It is not a de Polignac number, because 4163855 - 2²⁰ = 3115279 is a prime.

It is a super-2 number, since 2×4163855² = 34675376922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4163857) 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 3 ways as a sum of consecutive naturals, for example, 416381 + ... + 416390.

It is an arithmetic number, because the mean of its divisors is an integer number (1249158).

Almost surely, 2^4163855 is an apocalyptic number.

4163855 is a deficient number, since it is larger than the sum of its proper divisors (832777).

4163855 is an equidigital number, since it uses as much as digits as its factorization.

4163855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832776.

The product of its digits is 14400, while the sum is 32.

The square root of 4163855 is about 2040.5526212279. The cubic root of 4163855 is about 160.8786941655.

The spelling of 4163855 in words is "four million, one hundred sixty-three thousand, eight hundred fifty-five".