345789 has 12 divisors (see below), whose sum is σ = 518336.
Its totient is φ = 230364.
The previous prime is 345773. The next prime is 345791. The reversal of 345789 is 987543.
It is not a de Polignac number, because 345789 - 24 = 345773 is a prime.
It is a Duffinian number.
345789 is a lucky number.
It is a plaindrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (345739) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469 + ... + 954.
2345789 is an apocalyptic number.
It is an amenable number.
345789 is a deficient number, since it is larger than the sum of its proper divisors (172547).
345789 is an equidigital number, since it uses as much as digits as its factorization.
345789 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1438 (or 1426 counting only the distinct ones).
The product of its digits is 30240, while the sum is 36.
The square root of 345789 is about 588.0382640611.
The cubic root of 345789 is about 70.1892159634.
The spelling of 345789 in words is "three hundred forty-five thousand, seven hundred eighty-nine".