394705 has 4 divisors (see below), whose sum is σ = 473652. Its totient is φ = 315760.

The previous prime is 394699. The next prime is 394717. The reversal of 394705 is 507493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99856 + 294849 = 316^2 + 543^2 .

It is not a de Polignac number, because 394705 - 2⁵ = 394673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39466 + ... + 39475.

It is an arithmetic number, because the mean of its divisors is an integer number (118413).

2³⁹⁴⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

394705 is a deficient number, since it is larger than the sum of its proper divisors (78947).

394705 is an equidigital number, since it uses as much as digits as its factorization.

394705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78946.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 394705 is about 628.2555212650. The cubic root of 394705 is about 73.3540689756.

The spelling of 394705 in words is "three hundred ninety-four thousand, seven hundred five".