228065711 has 4 divisors (see below), whose sum is σ = 229861632. Its totient is φ = 226269792.

The previous prime is 228065707. The next prime is 228065737. The reversal of 228065711 is 117560822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117560822 = 2 ⋅58780411.

It is a cyclic number.

It is not a de Polignac number, because 228065711 - 2² = 228065707 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 (228065111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897770 + ... + 898023.

It is an arithmetic number, because the mean of its divisors is an integer number (57465408).

Almost surely, 2^228065711 is an apocalyptic number.

228065711 is a deficient number, since it is larger than the sum of its proper divisors (1795921).

228065711 is a wasteful number, since it uses less digits than its factorization.

228065711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795920.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 228065711 is about 15101.8446224294. The cubic root of 228065711 is about 610.9701582710.

The spelling of 228065711 in words is "two hundred twenty-eight million, sixty-five thousand, seven hundred eleven".