228873863 has 4 divisors (see below), whose sum is σ = 229718688. Its totient is φ = 228029040.

The previous prime is 228873859. The next prime is 228873877. The reversal of 228873863 is 368378822.

228873863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 228873863 - 2² = 228873859 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 (228873833) 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, 422006 + ... + 422547.

It is an arithmetic number, because the mean of its divisors is an integer number (57429672).

Almost surely, 2^228873863 is an apocalyptic number.

228873863 is a deficient number, since it is larger than the sum of its proper divisors (844825).

228873863 is an equidigital number, since it uses as much as digits as its factorization.

228873863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844824.

The product of its digits is 774144, while the sum is 47.

The square root of 228873863 is about 15128.5776925658. The cubic root of 228873863 is about 611.6909661597.

The spelling of 228873863 in words is "two hundred twenty-eight million, eight hundred seventy-three thousand, eight hundred sixty-three".