6830947729 has 2 divisors, whose sum is σ = 6830947730. Its totient is φ = 6830947728.

The previous prime is 6830947661. The next prime is 6830947757. The reversal of 6830947729 is 9277490386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6805425025 + 25522704 = 82495^2 + 5052^2 .

It is a cyclic number.

It is not a de Polignac number, because 6830947729 - 2⁹ = 6830947217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6830947729.

It is not a weakly prime, because it can be changed into another prime (6810947729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3415473864 + 3415473865.

It is an arithmetic number, because the mean of its divisors is an integer number (3415473865).

Almost surely, 2^6830947729 is an apocalyptic number.

It is an amenable number.

6830947729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6830947729 is an equidigital number, since it uses as much as digits as its factorization.

6830947729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 6830947729 is about 82649.5476636140. The cubic root of 6830947729 is about 1897.4062233323.

The spelling of 6830947729 in words is "six billion, eight hundred thirty million, nine hundred forty-seven thousand, seven hundred twenty-nine".