68170811 has 2 divisors, whose sum is σ = 68170812. Its totient is φ = 68170810.

The previous prime is 68170807. The next prime is 68170849. The reversal of 68170811 is 11807186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68170811 - 2² = 68170807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68170111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34085405 + 34085406.

It is an arithmetic number, because the mean of its divisors is an integer number (34085406).

Almost surely, 2^68170811 is an apocalyptic number.

68170811 is a deficient number, since it is larger than the sum of its proper divisors (1).

68170811 is an equidigital number, since it uses as much as digits as its factorization.

68170811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 68170811 is about 8256.5616935865. The cubic root of 68170811 is about 408.5069850144.

Adding to 68170811 its reverse (11807186), we get a palindrome (79977997).

The spelling of 68170811 in words is "sixty-eight million, one hundred seventy thousand, eight hundred eleven".