68669441 has 2 divisors, whose sum is σ = 68669442. Its totient is φ = 68669440.

The previous prime is 68669437. The next prime is 68669449. The reversal of 68669441 is 14496686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65044225 + 3625216 = 8065^2 + 1904^2 .

It is a cyclic number.

It is not a de Polignac number, because 68669441 - 2² = 68669437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68669392 and 68669401.

It is not a weakly prime, because it can be changed into another prime (68669449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34334720 + 34334721.

It is an arithmetic number, because the mean of its divisors is an integer number (34334721).

Almost surely, 2^68669441 is an apocalyptic number.

It is an amenable number.

68669441 is a deficient number, since it is larger than the sum of its proper divisors (1).

68669441 is an equidigital number, since it uses as much as digits as its factorization.

68669441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 68669441 is about 8286.7026614933. The cubic root of 68669441 is about 409.5005637867.

The spelling of 68669441 in words is "sixty-eight million, six hundred sixty-nine thousand, four hundred forty-one".