228506839 has 8 divisors (see below), whose sum is σ = 251701632. Its totient is φ = 205715640.

The previous prime is 228506833. The next prime is 228506851. The reversal of 228506839 is 938605822.

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 228506839 - 2⁵ = 228506807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228506795 and 228506804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228506833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99709 + ... + 101974.

It is an arithmetic number, because the mean of its divisors is an integer number (31462704).

Almost surely, 2^228506839 is an apocalyptic number.

228506839 is a deficient number, since it is larger than the sum of its proper divisors (23194793).

228506839 is a wasteful number, since it uses less digits than its factorization.

228506839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201797.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 228506839 is about 15116.4426701523. The cubic root of 228506839 is about 611.3638203462.

The spelling of 228506839 in words is "two hundred twenty-eight million, five hundred six thousand, eight hundred thirty-nine".