228247 has 8 divisors (see below), whose sum is σ = 246960. Its totient is φ = 210240.

The previous prime is 228233. The next prime is 228251. The reversal of 228247 is 742822.

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 228247 - 2¹¹ = 226199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228257) 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, 633 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (30870).

2²²⁸²⁴⁷ is an apocalyptic number.

228247 is a deficient number, since it is larger than the sum of its proper divisors (18713).

228247 is a wasteful number, since it uses less digits than its factorization.

228247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its digits is 1792, while the sum is 25.

The square root of 228247 is about 477.7520277299. The cubic root of 228247 is about 61.1132001735.

The spelling of 228247 in words is "two hundred twenty-eight thousand, two hundred forty-seven".