228307711 has 4 divisors (see below), whose sum is σ = 228353752. Its totient is φ = 228261672.

The previous prime is 228307699. The next prime is 228307753. The reversal of 228307711 is 117703822.

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 228307711 - 2¹¹ = 228305663 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 (228307771) 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, 14541 + ... + 25846.

It is an arithmetic number, because the mean of its divisors is an integer number (57088438).

Almost surely, 2^228307711 is an apocalyptic number.

228307711 is a deficient number, since it is larger than the sum of its proper divisors (46041).

228307711 is an equidigital number, since it uses as much as digits as its factorization.

228307711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46040.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 228307711 is about 15109.8547643583. The cubic root of 228307711 is about 611.1861815571.

The spelling of 228307711 in words is "two hundred twenty-eight million, three hundred seven thousand, seven hundred eleven".