1068439717 has 2 divisors, whose sum is σ = 1068439718. Its totient is φ = 1068439716.

The previous prime is 1068439709. The next prime is 1068439751. The reversal of 1068439717 is 7179348601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755645121 + 312794596 = 27489^2 + 17686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068439717 - 2³ = 1068439709 is a prime.

It is a super-2 number, since 2×1068439717² = 2283126857726080178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1068439777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534219858 + 534219859.

It is an arithmetic number, because the mean of its divisors is an integer number (534219859).

Almost surely, 2^1068439717 is an apocalyptic number.

It is an amenable number.

1068439717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068439717 is an equidigital number, since it uses as much as digits as its factorization.

1068439717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1068439717 is about 32686.9961452563. The cubic root of 1068439717 is about 1022.3117236331.

It can be divided in two parts, 1068439 and 717, that added together give a square (1069156 = 1034²).

The spelling of 1068439717 in words is "one billion, sixty-eight million, four hundred thirty-nine thousand, seven hundred seventeen".