865167 has 4 divisors (see below), whose sum is σ = 1153560. Its totient is φ = 576776.

The previous prime is 865159. The next prime is 865177. The reversal of 865167 is 761568.

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 865167 - 2³ = 865159 is a prime.

It is a D-number.

865167 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865167.

It is not an unprimeable number, because it can be changed into a prime (865177) 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, 144192 + ... + 144197.

It is an arithmetic number, because the mean of its divisors is an integer number (288390).

2⁸⁶⁵¹⁶⁷ is an apocalyptic number.

865167 is a deficient number, since it is larger than the sum of its proper divisors (288393).

865167 is a wasteful number, since it uses less digits than its factorization.

865167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288392.

The product of its digits is 10080, while the sum is 33.

The square root of 865167 is about 930.1435373102. The cubic root of 865167 is about 95.2869257014.

It can be divided in two parts, 86 and 5167, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 865167 in words is "eight hundred sixty-five thousand, one hundred sixty-seven".