394321 has 4 divisors (see below), whose sum is σ = 396144. Its totient is φ = 392500.

The previous prime is 394319. The next prime is 394327. The reversal of 394321 is 123493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394321 - 2¹ = 394319 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394292 and 394301.

It is not an unprimeable number, because it can be changed into a prime (394327) 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, 535 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (99036).

2³⁹⁴³²¹ is an apocalyptic number.

It is an amenable number.

394321 is a deficient number, since it is larger than the sum of its proper divisors (1823).

394321 is a wasteful number, since it uses less digits than its factorization.

394321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822.

The product of its digits is 648, while the sum is 22.

The square root of 394321 is about 627.9498387610. The cubic root of 394321 is about 73.3302730587.

The spelling of 394321 in words is "three hundred ninety-four thousand, three hundred twenty-one".