228634583 has 4 divisors (see below), whose sum is σ = 228684000. Its totient is φ = 228585168.

The previous prime is 228634537. The next prime is 228634597. The reversal of 228634583 is 385436822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 385436822 = 2 ⋅192718411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228634583 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 228634583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228634183) 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, 16958 + ... + 27291.

It is an arithmetic number, because the mean of its divisors is an integer number (57171000).

Almost surely, 2^228634583 is an apocalyptic number.

228634583 is a deficient number, since it is larger than the sum of its proper divisors (49417).

228634583 is an equidigital number, since it uses as much as digits as its factorization.

228634583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49416.

The product of its digits is 276480, while the sum is 41.

The square root of 228634583 is about 15120.6674125185. The cubic root of 228634583 is about 611.4777243201.

The spelling of 228634583 in words is "two hundred twenty-eight million, six hundred thirty-four thousand, five hundred eighty-three".