20898203 has 2 divisors, whose sum is σ = 20898204. Its totient is φ = 20898202.

The previous prime is 20898197. The next prime is 20898209. The reversal of 20898203 is 30289802.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20898197) and next prime (20898209).

It is a cyclic number.

It is not a de Polignac number, because 20898203 - 2⁶ = 20898139 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20898203.

It is not a weakly prime, because it can be changed into another prime (20898209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10449101 + 10449102.

It is an arithmetic number, because the mean of its divisors is an integer number (10449102).

Almost surely, 2^20898203 is an apocalyptic number.

20898203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20898203 is an equidigital number, since it uses as much as digits as its factorization.

20898203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20898203 is about 4571.4552387615. The cubic root of 20898203 is about 275.4459013915.

The spelling of 20898203 in words is "twenty million, eight hundred ninety-eight thousand, two hundred three".