228976085 has 16 divisors (see below), whose sum is σ = 299239920. Its totient is φ = 167185920.

The previous prime is 228976073. The next prime is 228976093. The reversal of 228976085 is 580679822.

It can be written as a sum of positive squares in 8 ways, for example, as 25542916 + 203433169 = 5054^2 + 14263^2 .

It is not a de Polignac number, because 228976085 - 2⁸ = 228975829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14006 + ... + 25575.

It is an arithmetic number, because the mean of its divisors is an integer number (18702495).

Almost surely, 2^228976085 is an apocalyptic number.

It is an amenable number.

228976085 is a deficient number, since it is larger than the sum of its proper divisors (70263835).

228976085 is a wasteful number, since it uses less digits than its factorization.

228976085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39688.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 228976085 is about 15131.9557559491. The cubic root of 228976085 is about 611.7820191768.

It can be divided in two parts, 22897 and 6085, that added together give a palindrome (28982).

The spelling of 228976085 in words is "two hundred twenty-eight million, nine hundred seventy-six thousand, eighty-five".