394117 has 4 divisors (see below), whose sum is σ = 414880. Its totient is φ = 373356.

The previous prime is 394099. The next prime is 394123. The reversal of 394117 is 711493.

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, and also an emirpimes, since its reverse is a distinct semiprime: 711493 = 19 ⋅37447.

It is a cyclic number.

It is not a de Polignac number, because 394117 - 2⁷ = 393989 is a prime.

It is a Duffinian number.

394117 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 394091 and 394100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394157) 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, 10353 + ... + 10390.

It is an arithmetic number, because the mean of its divisors is an integer number (103720).

2³⁹⁴¹¹⁷ is an apocalyptic number.

It is an amenable number.

394117 is a deficient number, since it is larger than the sum of its proper divisors (20763).

394117 is a wasteful number, since it uses less digits than its factorization.

394117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20762.

The product of its digits is 756, while the sum is 25.

The square root of 394117 is about 627.7873843906. The cubic root of 394117 is about 73.3176251938.

The spelling of 394117 in words is "three hundred ninety-four thousand, one hundred seventeen".