20198203 has 8 divisors (see below), whose sum is σ = 20708928. Its totient is φ = 19690944.

The previous prime is 20198201. The next prime is 20198219. The reversal of 20198203 is 30289102.

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

It is a cyclic number.

It is not a de Polignac number, because 20198203 - 2¹ = 20198201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20198201) 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 7 ways as a sum of consecutive naturals, for example, 14025 + ... + 15397.

It is an arithmetic number, because the mean of its divisors is an integer number (2588616).

Almost surely, 2^20198203 is an apocalyptic number.

20198203 is a deficient number, since it is larger than the sum of its proper divisors (510725).

20198203 is a wasteful number, since it uses less digits than its factorization.

20198203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20198203 is about 4494.2410927764. The cubic root of 20198203 is about 272.3354919868.

The spelling of 20198203 in words is "twenty million, one hundred ninety-eight thousand, two hundred three".