228317863 has 4 divisors (see below), whose sum is σ = 228527848. Its totient is φ = 228107880.

The previous prime is 228317833. The next prime is 228317867. The reversal of 228317863 is 368713822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228317863 - 2¹³ = 228309671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228317867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103353 + ... + 105538.

It is an arithmetic number, because the mean of its divisors is an integer number (57131962).

Almost surely, 2^228317863 is an apocalyptic number.

228317863 is a deficient number, since it is larger than the sum of its proper divisors (209985).

228317863 is a wasteful number, since it uses less digits than its factorization.

228317863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209984.

The product of its digits is 96768, while the sum is 40.

The square root of 228317863 is about 15110.1907003188. The cubic root of 228317863 is about 611.1952404863.

The spelling of 228317863 in words is "two hundred twenty-eight million, three hundred seventeen thousand, eight hundred sixty-three".