163867 has 4 divisors (see below), whose sum is σ = 178776. Its totient is φ = 148960.

The previous prime is 163861. The next prime is 163871. The reversal of 163867 is 768361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163867 - 2³ = 163859 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163861) 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, 7438 + ... + 7459.

It is an arithmetic number, because the mean of its divisors is an integer number (44694).

2¹⁶³⁸⁶⁷ is an apocalyptic number.

163867 is a deficient number, since it is larger than the sum of its proper divisors (14909).

163867 is a wasteful number, since it uses less digits than its factorization.

163867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908.

The product of its digits is 6048, while the sum is 31.

The square root of 163867 is about 404.8048912748. The cubic root of 163867 is about 54.7222359456.

It can be divided in two parts, 1638 and 67, that multiplied together give a triangular number (109746 = T₄₆₈).

The spelling of 163867 in words is "one hundred sixty-three thousand, eight hundred sixty-seven".