228717583 has 2 divisors, whose sum is σ = 228717584. Its totient is φ = 228717582.

The previous prime is 228717521. The next prime is 228717613. The reversal of 228717583 is 385717822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228717583 - 2²⁵ = 195163151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228717883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114358791 + 114358792.

It is an arithmetic number, because the mean of its divisors is an integer number (114358792).

Almost surely, 2^228717583 is an apocalyptic number.

228717583 is a deficient number, since it is larger than the sum of its proper divisors (1).

228717583 is an equidigital number, since it uses as much as digits as its factorization.

228717583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 228717583 is about 15123.4117513212. The cubic root of 228717583 is about 611.5517092064.

The spelling of 228717583 in words is "two hundred twenty-eight million, seven hundred seventeen thousand, five hundred eighty-three".