968909 has 2 divisors, whose sum is σ = 968910. Its totient is φ = 968908.

The previous prime is 968897. The next prime is 968911. The reversal of 968909 is 909869.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770884 + 198025 = 878^2 + 445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-968909 is a prime.

Together with 968911, 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 (968939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484454 + 484455.

It is an arithmetic number, because the mean of its divisors is an integer number (484455).

2⁹⁶⁸⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

968909 is a deficient number, since it is larger than the sum of its proper divisors (1).

968909 is an equidigital number, since it uses as much as digits as its factorization.

968909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 968909 is about 984.3317530183. The cubic root of 968909 is about 98.9527033202.

The spelling of 968909 in words is "nine hundred sixty-eight thousand, nine hundred nine".