20682706 has 16 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 9377680.

The previous prime is 20682677. The next prime is 20682719. The reversal of 20682706 is 60728602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10275 + ... + 12121.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^20682706 is an apocalyptic number.

20682706 is a deficient number, since it is larger than the sum of its proper divisors (13246574).

20682706 is a wasteful number, since it uses less digits than its factorization.

20682706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20682706 is about 4547.8243149884. The cubic root of 20682706 is about 274.4958520856.

It can be divided in two parts, 2068 and 2706, that added together give a palindrome (4774).

The spelling of 20682706 in words is "twenty million, six hundred eighty-two thousand, seven hundred six".