867943 has 2 divisors, whose sum is σ = 867944. Its totient is φ = 867942.

The previous prime is 867913. The next prime is 867947. The reversal of 867943 is 349768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 867943 - 2⁹ = 867431 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867947) 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, 433971 + 433972.

It is an arithmetic number, because the mean of its divisors is an integer number (433972).

2⁸⁶⁷⁹⁴³ is an apocalyptic number.

867943 is a deficient number, since it is larger than the sum of its proper divisors (1).

867943 is an equidigital number, since it uses as much as digits as its factorization.

867943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 867943 is about 931.6345850171. The cubic root of 867943 is about 95.3887303616.

The spelling of 867943 in words is "eight hundred sixty-seven thousand, nine hundred forty-three".