68108983 has 2 divisors, whose sum is σ = 68108984. Its totient is φ = 68108982.

The previous prime is 68108933. The next prime is 68108993. The reversal of 68108983 is 38980186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68108983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68108903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34054491 + 34054492.

It is an arithmetic number, because the mean of its divisors is an integer number (34054492).

Almost surely, 2^68108983 is an apocalyptic number.

68108983 is a deficient number, since it is larger than the sum of its proper divisors (1).

68108983 is an equidigital number, since it uses as much as digits as its factorization.

68108983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 68108983 is about 8252.8166706889. The cubic root of 68108983 is about 408.3834482246.

The spelling of 68108983 in words is "sixty-eight million, one hundred eight thousand, nine hundred eighty-three".