394709 has 8 divisors (see below), whose sum is σ = 456000. Its totient is φ = 334656.

The previous prime is 394699. The next prime is 394717. The reversal of 394709 is 907493.

It is a happy number.

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

It is not a de Polignac number, because 394709 - 2⁸ = 394453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394729) 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, 542 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (57000).

2³⁹⁴⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

394709 is a deficient number, since it is larger than the sum of its proper divisors (61291).

394709 is a wasteful number, since it uses less digits than its factorization.

394709 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 (nonzero) digits is 6804, while the sum is 32.

The square root of 394709 is about 628.2587046751. The cubic root of 394709 is about 73.3543167685.

The spelling of 394709 in words is "three hundred ninety-four thousand, seven hundred nine".