88609 has 2 divisors, whose sum is σ = 88610.
Its totient is φ = 88608.
The previous prime is 88607. The next prime is 88643. The reversal of 88609 is 90688.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 88209 + 400 = 297^2 + 20^2
It is a cyclic number.
It is not a de Polignac number, because 88609 - 21 = 88607 is a prime.
Together with 88607, it forms a pair of twin primes.
It is a Chen prime.
It is a zygodrome in base 3.
It is not a weakly prime, because it can be changed into another prime (88607) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44304 + 44305.
It is an arithmetic number, because the mean of its divisors is an integer number (44305).
288609 is an apocalyptic number.
It is an amenable number.
88609 is a deficient number, since it is larger than the sum of its proper divisors (1).
88609 is an equidigital number, since it uses as much as digits as its factorization.
88609 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3456, while the sum is 31.
The square root of 88609 is about 297.6726389845.
The cubic root of 88609 is about 44.5819723772.
The spelling of 88609 in words is "eighty-eight thousand, six hundred nine".