228587 has 2 divisors, whose sum is σ = 228588. Its totient is φ = 228586.

The previous prime is 228581. The next prime is 228593. The reversal of 228587 is 785822.

It is a balanced prime because it is at equal distance from previous prime (228581) and next prime (228593).

It is a cyclic number.

It is not a de Polignac number, because 228587 - 2⁶ = 228523 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228587.

It is not a weakly prime, because it can be changed into another prime (228581) 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 as a sum of consecutive naturals, namely, 114293 + 114294.

It is an arithmetic number, because the mean of its divisors is an integer number (114294).

2²²⁸⁵⁸⁷ is an apocalyptic number.

228587 is a deficient number, since it is larger than the sum of its proper divisors (1).

228587 is an equidigital number, since it uses as much as digits as its factorization.

228587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 32.

The square root of 228587 is about 478.1077284462. The cubic root of 228587 is about 61.1435301512.

The spelling of 228587 in words is "two hundred twenty-eight thousand, five hundred eighty-seven".