68005897 has 2 divisors, whose sum is σ = 68005898. Its totient is φ = 68005896.

The previous prime is 68005877. The next prime is 68005939. The reversal of 68005897 is 79850086.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37711881 + 30294016 = 6141^2 + 5504^2 .

It is a cyclic number.

It is not a de Polignac number, because 68005897 - 2¹¹ = 68003849 is a prime.

It is not a weakly prime, because it can be changed into another prime (68005867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34002948 + 34002949.

It is an arithmetic number, because the mean of its divisors is an integer number (34002949).

Almost surely, 2^68005897 is an apocalyptic number.

It is an amenable number.

68005897 is a deficient number, since it is larger than the sum of its proper divisors (1).

68005897 is an equidigital number, since it uses as much as digits as its factorization.

68005897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 68005897 is about 8246.5688016290. The cubic root of 68005897 is about 408.1773086351.

The spelling of 68005897 in words is "sixty-eight million, five thousand, eight hundred ninety-seven".