228047 has 4 divisors (see below), whose sum is σ = 230496. Its totient is φ = 225600.

The previous prime is 228023. The next prime is 228049. The reversal of 228047 is 740822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740822 = 2 ⋅370411.

It is a cyclic number.

It is not a de Polignac number, because 228047 - 2¹⁴ = 211663 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228049) 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, 1079 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (57624).

2²²⁸⁰⁴⁷ is an apocalyptic number.

228047 is a deficient number, since it is larger than the sum of its proper divisors (2449).

228047 is an equidigital number, since it uses as much as digits as its factorization.

228047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 228047 is about 477.5426682507. The cubic root of 228047 is about 61.0953449380.

Adding to 228047 its reverse (740822), we get a palindrome (968869).

The spelling of 228047 in words is "two hundred twenty-eight thousand, forty-seven".