68807663 has 2 divisors, whose sum is σ = 68807664. Its totient is φ = 68807662.

The previous prime is 68807659. The next prime is 68807681. The reversal of 68807663 is 36670886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68807663 - 2² = 68807659 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68807623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34403831 + 34403832.

It is an arithmetic number, because the mean of its divisors is an integer number (34403832).

Almost surely, 2^68807663 is an apocalyptic number.

68807663 is a deficient number, since it is larger than the sum of its proper divisors (1).

68807663 is an equidigital number, since it uses as much as digits as its factorization.

68807663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 68807663 is about 8295.0384568126. The cubic root of 68807663 is about 409.7751354701.

The spelling of 68807663 in words is "sixty-eight million, eight hundred seven thousand, six hundred sixty-three".