682208189 has 4 divisors (see below), whose sum is σ = 734685756. Its totient is φ = 629730624.

The previous prime is 682208179. The next prime is 682208203. The reversal of 682208189 is 981802286.

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 181791289 + 500416900 = 13483^2 + 22370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682208189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682208159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26238764 + ... + 26238789.

It is an arithmetic number, because the mean of its divisors is an integer number (183671439).

Almost surely, 2^682208189 is an apocalyptic number.

It is an amenable number.

682208189 is a deficient number, since it is larger than the sum of its proper divisors (52477567).

682208189 is a wasteful number, since it uses less digits than its factorization.

682208189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52477566.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 682208189 is about 26119.1153946683. The cubic root of 682208189 is about 880.3167717197.

The spelling of 682208189 in words is "six hundred eighty-two million, two hundred eight thousand, one hundred eighty-nine".