4163868 has 18 divisors (see below), whose sum is σ = 10525424. Its totient is φ = 1387944.

The previous prime is 4163857. The next prime is 4163879. The reversal of 4163868 is 8683614.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4163857) and next prime (4163879).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 115663 = 4163868 / (4 + 1 + 6 + 3 + 8 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57796 + ... + 57867.

Almost surely, 2^4163868 is an apocalyptic number.

It is an amenable number.

4163868 is an abundant number, since it is smaller than the sum of its proper divisors (6361556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4163868 is a wasteful number, since it uses less digits than its factorization.

4163868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115673 (or 115668 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4163868 is about 2040.5558066370. Note that the first 3 decimals coincide. The cubic root of 4163868 is about 160.8788615921.

The spelling of 4163868 in words is "four million, one hundred sixty-three thousand, eight hundred sixty-eight".