228563417 has 2 divisors, whose sum is σ = 228563418. Its totient is φ = 228563416.

The previous prime is 228563411. The next prime is 228563437. The reversal of 228563417 is 714365822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194212096 + 34351321 = 13936^2 + 5861^2 .

It is a cyclic number.

It is not a de Polignac number, because 228563417 - 2⁸ = 228563161 is a prime.

It is equal to p_12567881 and since 228563417 and 12567881 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (228563411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114281708 + 114281709.

It is an arithmetic number, because the mean of its divisors is an integer number (114281709).

Almost surely, 2^228563417 is an apocalyptic number.

It is an amenable number.

228563417 is a deficient number, since it is larger than the sum of its proper divisors (1).

228563417 is an equidigital number, since it uses as much as digits as its factorization.

228563417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 228563417 is about 15118.3139602272. The cubic root of 228563417 is about 611.4142738147.

The spelling of 228563417 in words is "two hundred twenty-eight million, five hundred sixty-three thousand, four hundred seventeen".