228485843 has 2 divisors, whose sum is σ = 228485844. Its totient is φ = 228485842.

The previous prime is 228485783. The next prime is 228485861. The reversal of 228485843 is 348584822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228485843 - 2¹⁴ = 228469459 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 228485794 and 228485803.

It is not a weakly prime, because it can be changed into another prime (228485863) 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 as a sum of consecutive naturals, namely, 114242921 + 114242922.

It is an arithmetic number, because the mean of its divisors is an integer number (114242922).

Almost surely, 2^228485843 is an apocalyptic number.

228485843 is a deficient number, since it is larger than the sum of its proper divisors (1).

228485843 is an equidigital number, since it uses as much as digits as its factorization.

228485843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 491520, while the sum is 44.

The square root of 228485843 is about 15115.7481786381. The cubic root of 228485843 is about 611.3450950307.

The spelling of 228485843 in words is "two hundred twenty-eight million, four hundred eighty-five thousand, eight hundred forty-three".