68227009 has 2 divisors, whose sum is σ = 68227010. Its totient is φ = 68227008.

The previous prime is 68226943. The next prime is 68227021. The reversal of 68227009 is 90072286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50979600 + 17247409 = 7140^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 68227009 - 2⁷ = 68226881 is a prime.

It is not a weakly prime, because it can be changed into another prime (68227109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34113504 + 34113505.

It is an arithmetic number, because the mean of its divisors is an integer number (34113505).

Almost surely, 2^68227009 is an apocalyptic number.

It is an amenable number.

68227009 is a deficient number, since it is larger than the sum of its proper divisors (1).

68227009 is an equidigital number, since it uses as much as digits as its factorization.

68227009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 68227009 is about 8259.9642251041. The cubic root of 68227009 is about 408.6192078737.

It can be divided in two parts, 6822 and 7009, that added together give a palindrome (13831).

The spelling of 68227009 in words is "sixty-eight million, two hundred twenty-seven thousand, nine".