20846806 has 8 divisors (see below), whose sum is σ = 31319640. Its totient is φ = 10406928.

The previous prime is 20846801. The next prime is 20846827. The reversal of 20846806 is 60864802.

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 (20846801) 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, 6591 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (3914955).

Almost surely, 2^20846806 is an apocalyptic number.

20846806 is a deficient number, since it is larger than the sum of its proper divisors (10472834).

20846806 is a wasteful number, since it uses less digits than its factorization.

20846806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16478.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20846806 is about 4565.8302640374. The cubic root of 20846806 is about 275.2199056468.

The spelling of 20846806 in words is "twenty million, eight hundred forty-six thousand, eight hundred six".