228803851 has 4 divisors (see below), whose sum is σ = 228834792. Its totient is φ = 228772912.

The previous prime is 228803803. The next prime is 228803857. The reversal of 228803851 is 158308822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 228803851 - 2¹⁵ = 228771083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228803851.

It is not an unprimeable number, because it can be changed into a prime (228803857) 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, 2871 + ... + 21583.

It is an arithmetic number, because the mean of its divisors is an integer number (57208698).

Almost surely, 2^228803851 is an apocalyptic number.

228803851 is a deficient number, since it is larger than the sum of its proper divisors (30941).

228803851 is a wasteful number, since it uses less digits than its factorization.

228803851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30940.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 228803851 is about 15126.2636166371. The cubic root of 228803851 is about 611.6285881686.

The spelling of 228803851 in words is "two hundred twenty-eight million, eight hundred three thousand, eight hundred fifty-one".