864167 has 2 divisors, whose sum is σ = 864168. Its totient is φ = 864166.

The previous prime is 864151. The next prime is 864169. The reversal of 864167 is 761468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864167 - 2⁴ = 864151 is a prime.

Together with 864169, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864169) 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 as a sum of consecutive naturals, namely, 432083 + 432084.

It is an arithmetic number, because the mean of its divisors is an integer number (432084).

2⁸⁶⁴¹⁶⁷ is an apocalyptic number.

864167 is a deficient number, since it is larger than the sum of its proper divisors (1).

864167 is an equidigital number, since it uses as much as digits as its factorization.

864167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 864167 is about 929.6058304464. The cubic root of 864167 is about 95.2501992037.

The spelling of 864167 in words is "eight hundred sixty-four thousand, one hundred sixty-seven".