2163867 has 8 divisors (see below), whose sum is σ = 2926080. Its totient is φ = 1422120.

The previous prime is 2163859. The next prime is 2163869. The reversal of 2163867 is 7683612.

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

It is not a de Polignac number, because 2163867 - 2³ = 2163859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2163869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4867 + ... + 5292.

It is an arithmetic number, because the mean of its divisors is an integer number (365760).

2^2163867 is an apocalyptic number.

2163867 is a deficient number, since it is larger than the sum of its proper divisors (762213).

2163867 is a wasteful number, since it uses less digits than its factorization.

2163867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233.

The product of its digits is 12096, while the sum is 33.

The square root of 2163867 is about 1471.0088374989. The cubic root of 2163867 is about 129.3431761442.

The spelling of 2163867 in words is "two million, one hundred sixty-three thousand, eight hundred sixty-seven".