228686347 has 2 divisors, whose sum is σ = 228686348. Its totient is φ = 228686346.

The previous prime is 228686323. The next prime is 228686387. The reversal of 228686347 is 743686822.

228686347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228686347 - 2¹⁹ = 228162059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228686297 and 228686306.

It is not a weakly prime, because it can be changed into another prime (228686317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114343173 + 114343174.

It is an arithmetic number, because the mean of its divisors is an integer number (114343174).

Almost surely, 2^228686347 is an apocalyptic number.

228686347 is a deficient number, since it is larger than the sum of its proper divisors (1).

228686347 is an equidigital number, since it uses as much as digits as its factorization.

228686347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 46.

The square root of 228686347 is about 15122.3790125760. The cubic root of 228686347 is about 611.5238680313.

The spelling of 228686347 in words is "two hundred twenty-eight million, six hundred eighty-six thousand, three hundred forty-seven".