68844197 has 2 divisors, whose sum is σ = 68844198. Its totient is φ = 68844196.

The previous prime is 68844187. The next prime is 68844229. The reversal of 68844197 is 79144886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63457156 + 5387041 = 7966^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 68844197 - 2⁶ = 68844133 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 (68844137) 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, 34422098 + 34422099.

It is an arithmetic number, because the mean of its divisors is an integer number (34422099).

Almost surely, 2^68844197 is an apocalyptic number.

It is an amenable number.

68844197 is a deficient number, since it is larger than the sum of its proper divisors (1).

68844197 is an equidigital number, since it uses as much as digits as its factorization.

68844197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 68844197 is about 8297.2403243488. The cubic root of 68844197 is about 409.8476471416.

The spelling of 68844197 in words is "sixty-eight million, eight hundred forty-four thousand, one hundred ninety-seven".