228533677 has 4 divisors (see below), whose sum is σ = 229796476. Its totient is φ = 227270880.

The previous prime is 228533671. The next prime is 228533699. The reversal of 228533677 is 776335822.

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 99620361 + 128913316 = 9981^2 + 11354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228533677 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 (228533671) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 631128 + ... + 631489.

It is an arithmetic number, because the mean of its divisors is an integer number (57449119).

Almost surely, 2^228533677 is an apocalyptic number.

It is an amenable number.

228533677 is a deficient number, since it is larger than the sum of its proper divisors (1262799).

228533677 is a wasteful number, since it uses less digits than its factorization.

228533677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262798.

The product of its digits is 423360, while the sum is 43.

The square root of 228533677 is about 15117.3303529426. The cubic root of 228533677 is about 611.3877541884.

The spelling of 228533677 in words is "two hundred twenty-eight million, five hundred thirty-three thousand, six hundred seventy-seven".