20800006 has 8 divisors (see below), whose sum is σ = 31223304. Its totient is φ = 10392240.

The previous prime is 20799983. The next prime is 20800007. The reversal of 20800006 is 60000802.

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 (20800007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (3902913).

Almost surely, 2^20800006 is an apocalyptic number.

20800006 is a deficient number, since it is larger than the sum of its proper divisors (10423298).

20800006 is a wasteful number, since it uses less digits than its factorization.

20800006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20800006 is about 4560.7023581900. The cubic root of 20800006 is about 275.0137998585.

Adding to 20800006 its reverse (60000802), we get a palindrome (80800808).

The spelling of 20800006 in words is "twenty million, eight hundred thousand, six".