68846321 has 2 divisors, whose sum is σ = 68846322. Its totient is φ = 68846320.

The previous prime is 68846317. The next prime is 68846341. The reversal of 68846321 is 12364886.

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., 36481600 + 32364721 = 6040^2 + 5689^2 .

It is a cyclic number.

It is not a de Polignac number, because 68846321 - 2² = 68846317 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (68846341) 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, 34423160 + 34423161.

It is an arithmetic number, because the mean of its divisors is an integer number (34423161).

Almost surely, 2^68846321 is an apocalyptic number.

It is an amenable number.

68846321 is a deficient number, since it is larger than the sum of its proper divisors (1).

68846321 is an equidigital number, since it uses as much as digits as its factorization.

68846321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 68846321 is about 8297.3683177258. The cubic root of 68846321 is about 409.8518620089.

The spelling of 68846321 in words is "sixty-eight million, eight hundred forty-six thousand, three hundred twenty-one".