228706 has 8 divisors (see below), whose sum is σ = 345564. Its totient is φ = 113520.

The previous prime is 228677. The next prime is 228707. The reversal of 228706 is 607822.

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 34225 = 441^2 + 185^2 .

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

It is not an unprimeable number, because it can be changed into a prime (228707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 676.

2²²⁸⁷⁰⁶ is an apocalyptic number.

228706 is a deficient number, since it is larger than the sum of its proper divisors (116858).

228706 is a wasteful number, since it uses less digits than its factorization.

228706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 228706 is about 478.2321611937. The cubic root of 228706 is about 61.1541385378.

The spelling of 228706 in words is "two hundred twenty-eight thousand, seven hundred six".