68326481 has 2 divisors, whose sum is σ = 68326482. Its totient is φ = 68326480.

The previous prime is 68326469. The next prime is 68326507. The reversal of 68326481 is 18462386.

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., 38950081 + 29376400 = 6241^2 + 5420^2 .

It is a cyclic number.

It is not a de Polignac number, because 68326481 - 2²⁶ = 1217617 is a prime.

It is a super-2 number, since 2×68326481² = 9337016011686722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68326411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34163240 + 34163241.

It is an arithmetic number, because the mean of its divisors is an integer number (34163241).

Almost surely, 2^68326481 is an apocalyptic number.

It is an amenable number.

68326481 is a deficient number, since it is larger than the sum of its proper divisors (1).

68326481 is an equidigital number, since it uses as much as digits as its factorization.

68326481 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 68326481 is about 8265.9833655773. The cubic root of 68326481 is about 408.8176944310.

The spelling of 68326481 in words is "sixty-eight million, three hundred twenty-six thousand, four hundred eighty-one".