865606682 has 4 divisors (see below), whose sum is σ = 1298410026. Its totient is φ = 432803340.

The previous prime is 865606681. The next prime is 865606699. The reversal of 865606682 is 286606568.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 481407481 + 384199201 = 21941^2 + 19601^2 .

It is not an unprimeable number, because it can be changed into a prime (865606681) 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, 216401669 + ... + 216401672.

Almost surely, 2^865606682 is an apocalyptic number.

865606682 is a deficient number, since it is larger than the sum of its proper divisors (432803344).

865606682 is a wasteful number, since it uses less digits than its factorization.

865606682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432803343.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 865606682 is about 29421.1944353046. The cubic root of 865606682 is about 953.0306472463.

The spelling of 865606682 in words is "eight hundred sixty-five million, six hundred six thousand, six hundred eighty-two".