68270569 has 2 divisors, whose sum is σ = 68270570. Its totient is φ = 68270568.

The previous prime is 68270561. The next prime is 68270599. The reversal of 68270569 is 96507286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43718544 + 24552025 = 6612^2 + 4955^2 .

It is a cyclic number.

It is not a de Polignac number, because 68270569 - 2³ = 68270561 is a prime.

It is a super-2 number, since 2×68270569² = 9321741183167522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68270561) 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, 34135284 + 34135285.

It is an arithmetic number, because the mean of its divisors is an integer number (34135285).

Almost surely, 2^68270569 is an apocalyptic number.

It is an amenable number.

68270569 is a deficient number, since it is larger than the sum of its proper divisors (1).

68270569 is an equidigital number, since it uses as much as digits as its factorization.

68270569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 68270569 is about 8262.6006196596. The cubic root of 68270569 is about 408.7061512814.

The spelling of 68270569 in words is "sixty-eight million, two hundred seventy thousand, five hundred sixty-nine".