68383897 has 2 divisors, whose sum is σ = 68383898. Its totient is φ = 68383896.

The previous prime is 68383873. The next prime is 68383957. The reversal of 68383897 is 79838386.

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., 63936016 + 4447881 = 7996^2 + 2109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68383897 is a prime.

It is not a weakly prime, because it can be changed into another prime (68383097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34191948 + 34191949.

It is an arithmetic number, because the mean of its divisors is an integer number (34191949).

Almost surely, 2^68383897 is an apocalyptic number.

It is an amenable number.

68383897 is a deficient number, since it is larger than the sum of its proper divisors (1).

68383897 is an equidigital number, since it uses as much as digits as its factorization.

68383897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 68383897 is about 8269.4556652781. The cubic root of 68383897 is about 408.9321747156.

The spelling of 68383897 in words is "sixty-eight million, three hundred eighty-three thousand, eight hundred ninety-seven".