682783109 has 4 divisors (see below), whose sum is σ = 687132204. Its totient is φ = 678434016.

The previous prime is 682783103. The next prime is 682783181. The reversal of 682783109 is 901387286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 421152484 + 261630625 = 20522^2 + 16175^2 .

It is a cyclic number.

It is not a de Polignac number, because 682783109 - 2²⁰ = 681734533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 682783109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682783103) 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 3 ways as a sum of consecutive naturals, for example, 2174312 + ... + 2174625.

It is an arithmetic number, because the mean of its divisors is an integer number (171783051).

Almost surely, 2^682783109 is an apocalyptic number.

It is an amenable number.

682783109 is a deficient number, since it is larger than the sum of its proper divisors (4349095).

682783109 is a wasteful number, since it uses less digits than its factorization.

682783109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349094.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 682783109 is about 26130.1188095271. The cubic root of 682783109 is about 880.5639932280.

The spelling of 682783109 in words is "six hundred eighty-two million, seven hundred eighty-three thousand, one hundred nine".