68823563 has 2 divisors, whose sum is σ = 68823564. Its totient is φ = 68823562.

The previous prime is 68823541. The next prime is 68823593. The reversal of 68823563 is 36532886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68823563 - 2⁶ = 68823499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68823563.

It is not a weakly prime, because it can be changed into another prime (68823533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34411781 + 34411782.

It is an arithmetic number, because the mean of its divisors is an integer number (34411782).

Almost surely, 2^68823563 is an apocalyptic number.

68823563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68823563 is an equidigital number, since it uses as much as digits as its factorization.

68823563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 68823563 is about 8295.9968056889. The cubic root of 68823563 is about 409.8066965036.

The spelling of 68823563 in words is "sixty-eight million, eight hundred twenty-three thousand, five hundred sixty-three".