228593663 has 2 divisors, whose sum is σ = 228593664. Its totient is φ = 228593662.

The previous prime is 228593641. The next prime is 228593669. The reversal of 228593663 is 366395822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228593663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228593669) 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, 114296831 + 114296832.

It is an arithmetic number, because the mean of its divisors is an integer number (114296832).

Almost surely, 2^228593663 is an apocalyptic number.

228593663 is a deficient number, since it is larger than the sum of its proper divisors (1).

228593663 is an equidigital number, since it uses as much as digits as its factorization.

228593663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 44.

The square root of 228593663 is about 15119.3142370942. The cubic root of 228593663 is about 611.4412422898.

The spelling of 228593663 in words is "two hundred twenty-eight million, five hundred ninety-three thousand, six hundred sixty-three".