43607 has 2 divisors, whose sum is σ = 43608.
Its totient is φ = 43606.
The previous prime is 43597. The next prime is 43609. The reversal of 43607 is 70634.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 43607 - 24 = 43591 is a prime.
Together with 43609, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (43609) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21803 + 21804.
It is an arithmetic number, because the mean of its divisors is an integer number (21804).
243607 is an apocalyptic number.
43607 is a deficient number, since it is larger than the sum of its proper divisors (1).
43607 is an equidigital number, since it uses as much as digits as its factorization.
43607 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 20.
The square root of 43607 is about 208.8228914655.
The cubic root of 43607 is about 35.1980607575.
The spelling of 43607 in words is "forty-three thousand, six hundred seven".