68444197 has 2 divisors, whose sum is σ = 68444198. Its totient is φ = 68444196.

The previous prime is 68444183. The next prime is 68444203. The reversal of 68444197 is 79144486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 5225796 = 7951^2 + 2286^2 .

It is a cyclic number.

It is not a de Polignac number, because 68444197 - 2¹⁵ = 68411429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68444107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34222098 + 34222099.

It is an arithmetic number, because the mean of its divisors is an integer number (34222099).

Almost surely, 2^68444197 is an apocalyptic number.

It is an amenable number.

68444197 is a deficient number, since it is larger than the sum of its proper divisors (1).

68444197 is an equidigital number, since it uses as much as digits as its factorization.

68444197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 68444197 is about 8273.1008092492. The cubic root of 68444197 is about 409.0523363661.

The spelling of 68444197 in words is "sixty-eight million, four hundred forty-four thousand, one hundred ninety-seven".