68273329 has 2 divisors, whose sum is σ = 68273330. Its totient is φ = 68273328.

The previous prime is 68273311. The next prime is 68273339. The reversal of 68273329 is 92337286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 6682225 = 7848^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 68273329 - 2⁹ = 68272817 is a prime.

It is a super-2 number, since 2×68273329² = 9322494905484482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68273291 and 68273300.

It is not a weakly prime, because it can be changed into another prime (68273339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34136664 + 34136665.

It is an arithmetic number, because the mean of its divisors is an integer number (34136665).

Almost surely, 2^68273329 is an apocalyptic number.

It is an amenable number.

68273329 is a deficient number, since it is larger than the sum of its proper divisors (1).

68273329 is an equidigital number, since it uses as much as digits as its factorization.

68273329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 68273329 is about 8262.7676356049. The cubic root of 68273329 is about 408.7116588464.

The spelling of 68273329 in words is "sixty-eight million, two hundred seventy-three thousand, three hundred twenty-nine".