228852287 has 4 divisors (see below), whose sum is σ = 228885216. Its totient is φ = 228819360.

The previous prime is 228852257. The next prime is 228852293. The reversal of 228852287 is 782258822.

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 228852287 - 2⁸ = 228852031 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 (228852227) 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, 1514 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (57221304).

Almost surely, 2^228852287 is an apocalyptic number.

228852287 is a deficient number, since it is larger than the sum of its proper divisors (32929).

228852287 is an equidigital number, since it uses as much as digits as its factorization.

228852287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32928.

The product of its digits is 286720, while the sum is 44.

The square root of 228852287 is about 15127.8645882358. The cubic root of 228852287 is about 611.6717441323.

The spelling of 228852287 in words is "two hundred twenty-eight million, eight hundred fifty-two thousand, two hundred eighty-seven".