228664203 has 4 divisors (see below), whose sum is σ = 304885608. Its totient is φ = 152442800.

The previous prime is 228664193. The next prime is 228664213. The reversal of 228664203 is 302466822.

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

It is an interprime number because it is at equal distance from previous prime (228664193) and next prime (228664213).

It is a cyclic number.

It is not a de Polignac number, because 228664203 - 2⁴ = 228664187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228664213) 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, 38110698 + ... + 38110703.

It is an arithmetic number, because the mean of its divisors is an integer number (76221402).

Almost surely, 2^228664203 is an apocalyptic number.

228664203 is a deficient number, since it is larger than the sum of its proper divisors (76221405).

228664203 is an equidigital number, since it uses as much as digits as its factorization.

228664203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76221404.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 228664203 is about 15121.6468349185. The cubic root of 228664203 is about 611.5041291738.

The spelling of 228664203 in words is "two hundred twenty-eight million, six hundred sixty-four thousand, two hundred three".