20800203 has 4 divisors (see below), whose sum is σ = 27733608. Its totient is φ = 13866800.

The previous prime is 20800201. The next prime is 20800229. The reversal of 20800203 is 30200802.

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

It is a cyclic number.

It is not a de Polignac number, because 20800203 - 2¹ = 20800201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20800201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3466698 + ... + 3466703.

It is an arithmetic number, because the mean of its divisors is an integer number (6933402).

Almost surely, 2^20800203 is an apocalyptic number.

20800203 is a deficient number, since it is larger than the sum of its proper divisors (6933405).

20800203 is an equidigital number, since it uses as much as digits as its factorization.

20800203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933404.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20800203 is about 4560.7239556895. The cubic root of 20800203 is about 275.0146680881.

The spelling of 20800203 in words is "twenty million, eight hundred thousand, two hundred three".