30089 has 2 divisors, whose sum is σ = 30090.
Its totient is φ = 30088.
The previous prime is 30071. The next prime is 30091. The reversal of 30089 is 98003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 25600 + 4489 = 160^2 + 67^2
It is a cyclic number.
It is not a de Polignac number, because 30089 - 28 = 29833 is a prime.
Together with 30091, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30089.
It is not a weakly prime, because it can be changed into another prime (30029) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15044 + 15045.
It is an arithmetic number, because the mean of its divisors is an integer number (15045).
230089 is an apocalyptic number.
It is an amenable number.
30089 is a deficient number, since it is larger than the sum of its proper divisors (1).
30089 is an equidigital number, since it uses as much as digits as its factorization.
30089 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 30089 is about 173.4618113592.
The cubic root of 30089 is about 31.1030218009.
It can be divided in two parts, 3008 and 9, that multiplied together give a palindrome (27072).
The spelling of 30089 in words is "thirty thousand, eighty-nine".