682168507 has 2 divisors, whose sum is σ = 682168508. Its totient is φ = 682168506.

The previous prime is 682168499. The next prime is 682168541. The reversal of 682168507 is 705861286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 682168507 - 2³ = 682168499 is a prime.

It is not a weakly prime, because it can be changed into another prime (682168567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341084253 + 341084254.

It is an arithmetic number, because the mean of its divisors is an integer number (341084254).

Almost surely, 2^682168507 is an apocalyptic number.

682168507 is a deficient number, since it is larger than the sum of its proper divisors (1).

682168507 is an equidigital number, since it uses as much as digits as its factorization.

682168507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 682168507 is about 26118.3557484004. The cubic root of 682168507 is about 880.2997029285.

The spelling of 682168507 in words is "six hundred eighty-two million, one hundred sixty-eight thousand, five hundred seven".