228806611 has 4 divisors (see below), whose sum is σ = 249607224. Its totient is φ = 208006000.

The previous prime is 228806603. The next prime is 228806623. The reversal of 228806611 is 116608822.

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 228806611 - 2³ = 228806603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228801611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10400290 + ... + 10400311.

It is an arithmetic number, because the mean of its divisors is an integer number (62401806).

Almost surely, 2^228806611 is an apocalyptic number.

228806611 is a deficient number, since it is larger than the sum of its proper divisors (20800613).

228806611 is a wasteful number, since it uses less digits than its factorization.

228806611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800612.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 228806611 is about 15126.3548484094. The cubic root of 228806611 is about 611.6310474630.

The spelling of 228806611 in words is "two hundred twenty-eight million, eight hundred six thousand, six hundred eleven".