682251817 has 6 divisors (see below), whose sum is σ = 738769902. Its totient is φ = 629770752.

The previous prime is 682251793. The next prime is 682251833. The reversal of 682251817 is 718152286.

It can be written as a sum of positive squares in 3 ways, for example, as 16818201 + 665433616 = 4101^2 + 25796^2 .

It is a de Polignac number, because none of the positive numbers 2^k-682251817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 682251817.

It is not an unprimeable number, because it can be changed into a prime (682251887) 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 in 5 ways as a sum of consecutive naturals, for example, 2018328 + ... + 2018665.

It is an arithmetic number, because the mean of its divisors is an integer number (123128317).

Almost surely, 2^682251817 is an apocalyptic number.

It is an amenable number.

682251817 is a deficient number, since it is larger than the sum of its proper divisors (56518085).

682251817 is a wasteful number, since it uses less digits than its factorization.

682251817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037019 (or 4037006 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 682251817 is about 26119.9505550834. The cubic root of 682251817 is about 880.3355370771.

The spelling of 682251817 in words is "six hundred eighty-two million, two hundred fifty-one thousand, eight hundred seventeen".