682001687 has 2 divisors, whose sum is σ = 682001688. Its totient is φ = 682001686.

The previous prime is 682001659. The next prime is 682001701. The reversal of 682001687 is 786100286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 682001687 - 2¹⁴ = 681985303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 682001687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682001657) 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, 341000843 + 341000844.

It is an arithmetic number, because the mean of its divisors is an integer number (341000844).

Almost surely, 2^682001687 is an apocalyptic number.

682001687 is a deficient number, since it is larger than the sum of its proper divisors (1).

682001687 is an equidigital number, since it uses as much as digits as its factorization.

682001687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 682001687 is about 26115.1620136655. The cubic root of 682001687 is about 880.2279398342.

The spelling of 682001687 in words is "six hundred eighty-two million, one thousand, six hundred eighty-seven".