394679 has 4 divisors (see below), whose sum is σ = 405384. Its totient is φ = 383976.

The previous prime is 394673. The next prime is 394699. The reversal of 394679 is 976493.

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

It is a cyclic number.

It is not a de Polignac number, because 394679 - 2¹⁶ = 329143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5297 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (101346).

2³⁹⁴⁶⁷⁹ is an apocalyptic number.

394679 is a deficient number, since it is larger than the sum of its proper divisors (10705).

394679 is a wasteful number, since it uses less digits than its factorization.

394679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704.

The product of its digits is 40824, while the sum is 38.

The square root of 394679 is about 628.2348287066. The cubic root of 394679 is about 73.3524582809.

The spelling of 394679 in words is "three hundred ninety-four thousand, six hundred seventy-nine".