68585897 has 2 divisors, whose sum is σ = 68585898. Its totient is φ = 68585896.

The previous prime is 68585879. The next prime is 68585941. The reversal of 68585897 is 79858586.

Together with previous prime (68585879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 9357481 = 7696^2 + 3059^2 .

It is a cyclic number.

It is not a de Polignac number, because 68585897 - 2⁸ = 68585641 is a prime.

It is not a weakly prime, because it can be changed into another prime (68585807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34292948 + 34292949.

It is an arithmetic number, because the mean of its divisors is an integer number (34292949).

Almost surely, 2^68585897 is an apocalyptic number.

It is an amenable number.

68585897 is a deficient number, since it is larger than the sum of its proper divisors (1).

68585897 is an equidigital number, since it uses as much as digits as its factorization.

68585897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 56.

The square root of 68585897 is about 8281.6602804027. The cubic root of 68585897 is about 409.3344287591.

The spelling of 68585897 in words is "sixty-eight million, five hundred eighty-five thousand, eight hundred ninety-seven".