682728929 has 2 divisors, whose sum is σ = 682728930. Its totient is φ = 682728928.

The previous prime is 682728887. The next prime is 682728947. The reversal of 682728929 is 929827286.

682728929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 161976529 = 22820^2 + 12727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682728929 is a prime.

It is a super-2 number, since 2×682728929² = 932237580986974082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (682728979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341364464 + 341364465.

It is an arithmetic number, because the mean of its divisors is an integer number (341364465).

Almost surely, 2^682728929 is an apocalyptic number.

It is an amenable number.

682728929 is a deficient number, since it is larger than the sum of its proper divisors (1).

682728929 is an equidigital number, since it uses as much as digits as its factorization.

682728929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 682728929 is about 26129.0820542934. The cubic root of 682728929 is about 880.5407011955.

The spelling of 682728929 in words is "six hundred eighty-two million, seven hundred twenty-eight thousand, nine hundred twenty-nine".