228703873 has 8 divisors (see below), whose sum is σ = 242320680. Its totient is φ = 215105280.

The previous prime is 228703859. The next prime is 228703913. The reversal of 228703873 is 378307822.

228703873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 59105344 + 169598529 = 7688^2 + 13023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228703873 - 2⁵ = 228703841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228703843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28023 + ... + 35251.

It is an arithmetic number, because the mean of its divisors is an integer number (30290085).

Almost surely, 2^228703873 is an apocalyptic number.

It is an amenable number.

228703873 is a deficient number, since it is larger than the sum of its proper divisors (13616807).

228703873 is a wasteful number, since it uses less digits than its factorization.

228703873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 228703873 is about 15122.9584737908. The cubic root of 228703873 is about 611.5394895637.

The spelling of 228703873 in words is "two hundred twenty-eight million, seven hundred three thousand, eight hundred seventy-three".