228395863 has 2 divisors, whose sum is σ = 228395864. Its totient is φ = 228395862.

The previous prime is 228395861. The next prime is 228395891. The reversal of 228395863 is 368593822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228395863 - 2¹ = 228395861 is a prime.

Together with 228395861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228395861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114197931 + 114197932.

It is an arithmetic number, because the mean of its divisors is an integer number (114197932).

Almost surely, 2^228395863 is an apocalyptic number.

228395863 is a deficient number, since it is larger than the sum of its proper divisors (1).

228395863 is an equidigital number, since it uses as much as digits as its factorization.

228395863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 228395863 is about 15112.7715194798. The cubic root of 228395863 is about 611.2648332320.

The spelling of 228395863 in words is "two hundred twenty-eight million, three hundred ninety-five thousand, eight hundred sixty-three".