395709 has 8 divisors (see below), whose sum is σ = 558720. Its totient is φ = 248256.

The previous prime is 395701. The next prime is 395719. The reversal of 395709 is 907593.

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

It is not a de Polignac number, because 395709 - 2³ = 395701 is a prime.

It is a super-2 number, since 2×395709² = 313171225362, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 395709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (69840).

2³⁹⁵⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

395709 is a deficient number, since it is larger than the sum of its proper divisors (163011).

395709 is a wasteful number, since it uses less digits than its factorization.

395709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 395709 is about 629.0540517316. The cubic root of 395709 is about 73.4162125413.

The spelling of 395709 in words is "three hundred ninety-five thousand, seven hundred nine".