228707713 has 4 divisors (see below), whose sum is σ = 246300628. Its totient is φ = 211114800.

The previous prime is 228707711. The next prime is 228707719. The reversal of 228707713 is 317707822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11675889 + 217031824 = 3417^2 + 14732^2 .

It is not a de Polignac number, because 228707713 - 2¹ = 228707711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228707711) 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, 8796438 + ... + 8796463.

It is an arithmetic number, because the mean of its divisors is an integer number (61575157).

Almost surely, 2^228707713 is an apocalyptic number.

It is an amenable number.

228707713 is a deficient number, since it is larger than the sum of its proper divisors (17592915).

228707713 is a wasteful number, since it uses less digits than its factorization.

228707713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17592914.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 228707713 is about 15123.0854325432. The cubic root of 228707713 is about 611.5429121824.

The spelling of 228707713 in words is "two hundred twenty-eight million, seven hundred seven thousand, seven hundred thirteen".