395789 has 8 divisors (see below), whose sum is σ = 428640. Its totient is φ = 364176.

The previous prime is 395767. The next prime is 395803. The reversal of 395789 is 987593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 395789 - 2⁸ = 395533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395719) 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 in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (53580).

2³⁹⁵⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

395789 is a deficient number, since it is larger than the sum of its proper divisors (32851).

395789 is a wasteful number, since it uses less digits than its factorization.

395789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its digits is 68040, while the sum is 41.

The square root of 395789 is about 629.1176360586. The cubic root of 395789 is about 73.4211596963.

It can be divided in two parts, 395 and 789, that multiplied together give a triangular number (311655 = T₇₈₉).

The spelling of 395789 in words is "three hundred ninety-five thousand, seven hundred eighty-nine".