68352961 has 2 divisors, whose sum is σ = 68352962. Its totient is φ = 68352960.

The previous prime is 68352959. The next prime is 68352967. The reversal of 68352961 is 16925386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 207936 = 8255^2 + 456^2 .

It is a cyclic number.

It is not a de Polignac number, because 68352961 - 2¹ = 68352959 is a prime.

Together with 68352959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68352967) 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, 34176480 + 34176481.

It is an arithmetic number, because the mean of its divisors is an integer number (34176481).

Almost surely, 2^68352961 is an apocalyptic number.

It is an amenable number.

68352961 is a deficient number, since it is larger than the sum of its proper divisors (1).

68352961 is an equidigital number, since it uses as much as digits as its factorization.

68352961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 68352961 is about 8267.5849557171. The cubic root of 68352961 is about 408.8705001866.

The spelling of 68352961 in words is "sixty-eight million, three hundred fifty-two thousand, nine hundred sixty-one".