394613 has 4 divisors (see below), whose sum is σ = 397068. Its totient is φ = 392160.

The previous prime is 394601. The next prime is 394619. The reversal of 394613 is 316493.

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 305809 + 88804 = 553^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 394613 - 2⁶ = 394549 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 (394619) 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, 968 + ... + 1313.

It is an arithmetic number, because the mean of its divisors is an integer number (99267).

2³⁹⁴⁶¹³ is an apocalyptic number.

It is an amenable number.

394613 is a deficient number, since it is larger than the sum of its proper divisors (2455).

394613 is a wasteful number, since it uses less digits than its factorization.

394613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its digits is 1944, while the sum is 26.

The square root of 394613 is about 628.1822983816. The cubic root of 394613 is about 73.3483692768.

The spelling of 394613 in words is "three hundred ninety-four thousand, six hundred thirteen".