1068396643 has 2 divisors, whose sum is σ = 1068396644. Its totient is φ = 1068396642.

The previous prime is 1068396607. The next prime is 1068396653. The reversal of 1068396643 is 3466938601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1068396643 - 2²¹ = 1066299491 is a prime.

It is a super-2 number, since 2×1068396643² = 2282942773547338898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068396593 and 1068396602.

It is not a weakly prime, because it can be changed into another prime (1068396653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534198321 + 534198322.

It is an arithmetic number, because the mean of its divisors is an integer number (534198322).

Almost surely, 2^1068396643 is an apocalyptic number.

1068396643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068396643 is an equidigital number, since it uses as much as digits as its factorization.

1068396643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 1068396643 is about 32686.3372527422. The cubic root of 1068396643 is about 1022.2979853297.

The spelling of 1068396643 in words is "one billion, sixty-eight million, three hundred ninety-six thousand, six hundred forty-three".