823134307 has 2 divisors, whose sum is σ = 823134308. Its totient is φ = 823134306.

The previous prime is 823134293. The next prime is 823134331. The reversal of 823134307 is 703431328.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-823134307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (823134107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411567153 + 411567154.

It is an arithmetic number, because the mean of its divisors is an integer number (411567154).

Almost surely, 2^823134307 is an apocalyptic number.

823134307 is a deficient number, since it is larger than the sum of its proper divisors (1).

823134307 is an equidigital number, since it uses as much as digits as its factorization.

823134307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 823134307 is about 28690.3173039268. The cubic root of 823134307 is about 937.1811991464.

The spelling of 823134307 in words is "eight hundred twenty-three million, one hundred thirty-four thousand, three hundred seven".