394913 has 4 divisors (see below), whose sum is σ = 396180. Its totient is φ = 393648.

The previous prime is 394897. The next prime is 394931. The reversal of 394913 is 319493.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 351649 = 208^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 394913 - 2⁴ = 394897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (99045).

2³⁹⁴⁹¹³ is an apocalyptic number.

It is an amenable number.

394913 is a deficient number, since it is larger than the sum of its proper divisors (1267).

394913 is an equidigital number, since it uses as much as digits as its factorization.

394913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its digits is 2916, while the sum is 29.

The square root of 394913 is about 628.4210372036. The cubic root of 394913 is about 73.3669519869.

The spelling of 394913 in words is "three hundred ninety-four thousand, nine hundred thirteen".