228685583 has 16 divisors (see below), whose sum is σ = 263900160. Its totient is φ = 194119200.

The previous prime is 228685579. The next prime is 228685603. The reversal of 228685583 is 385586822.

It is a cyclic number.

It is not a de Polignac number, because 228685583 - 2² = 228685579 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 (228685553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530378 + ... + 530808.

It is an arithmetic number, because the mean of its divisors is an integer number (16493760).

Almost surely, 2^228685583 is an apocalyptic number.

228685583 is a deficient number, since it is larger than the sum of its proper divisors (35214577).

228685583 is a wasteful number, since it uses less digits than its factorization.

228685583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its digits is 921600, while the sum is 47.

The square root of 228685583 is about 15122.3537519792. The cubic root of 228685583 is about 611.5231870334.

The spelling of 228685583 in words is "two hundred twenty-eight million, six hundred eighty-five thousand, five hundred eighty-three".