68539337 has 2 divisors, whose sum is σ = 68539338. Its totient is φ = 68539336.

The previous prime is 68539277. The next prime is 68539349. The reversal of 68539337 is 73393586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43178041 + 25361296 = 6571^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 68539337 - 2¹² = 68535241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68539837) 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, 34269668 + 34269669.

It is an arithmetic number, because the mean of its divisors is an integer number (34269669).

Almost surely, 2^68539337 is an apocalyptic number.

It is an amenable number.

68539337 is a deficient number, since it is larger than the sum of its proper divisors (1).

68539337 is an equidigital number, since it uses as much as digits as its factorization.

68539337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 68539337 is about 8278.8487726253. The cubic root of 68539337 is about 409.2417813094.

The spelling of 68539337 in words is "sixty-eight million, five hundred thirty-nine thousand, three hundred thirty-seven".