20680862 has 8 divisors (see below), whose sum is σ = 31065816. Its totient is φ = 10325592.

The previous prime is 20680843. The next prime is 20680867. The reversal of 20680862 is 26808602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20680867) 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, 5588 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (3883227).

Almost surely, 2^20680862 is an apocalyptic number.

20680862 is a deficient number, since it is larger than the sum of its proper divisors (10384954).

20680862 is a wasteful number, since it uses less digits than its factorization.

20680862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14842.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20680862 is about 4547.6215761648. The cubic root of 20680862 is about 274.4876941364.

The spelling of 20680862 in words is "twenty million, six hundred eighty thousand, eight hundred sixty-two".