1068684613 has 2 divisors, whose sum is σ = 1068684614. Its totient is φ = 1068684612.

The previous prime is 1068684601. The next prime is 1068684619. The reversal of 1068684613 is 3164868601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1060023364 + 8661249 = 32558^2 + 2943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068684613 is a prime.

It is a super-2 number, since 2×1068684613² = 2284173604125919538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1068684613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1068684619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534342306 + 534342307.

It is an arithmetic number, because the mean of its divisors is an integer number (534342307).

Almost surely, 2^1068684613 is an apocalyptic number.

It is an amenable number.

1068684613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068684613 is an equidigital number, since it uses as much as digits as its factorization.

1068684613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1068684613 is about 32690.7420074859. The cubic root of 1068684613 is about 1022.3898253491.

The spelling of 1068684613 in words is "one billion, sixty-eight million, six hundred eighty-four thousand, six hundred thirteen".