867959 has 2 divisors, whose sum is σ = 867960. Its totient is φ = 867958.

The previous prime is 867947. The next prime is 867991. The reversal of 867959 is 959768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867959 - 2⁴ = 867943 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (867059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433979 + 433980.

It is an arithmetic number, because the mean of its divisors is an integer number (433980).

2⁸⁶⁷⁹⁵⁹ is an apocalyptic number.

867959 is a deficient number, since it is larger than the sum of its proper divisors (1).

867959 is an equidigital number, since it uses as much as digits as its factorization.

867959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 867959 is about 931.6431720353. The cubic root of 867959 is about 95.3893165023.

Subtracting 867959 from its reverse (959768), we obtain a square (91809 = 303²).

The spelling of 867959 in words is "eight hundred sixty-seven thousand, nine hundred fifty-nine".