394115 has 4 divisors (see below), whose sum is σ = 472944. Its totient is φ = 315288.

The previous prime is 394099. The next prime is 394123. The reversal of 394115 is 511493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511493 = 617 ⋅829.

It is a cyclic number.

It is not a de Polignac number, because 394115 - 2⁴ = 394099 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 394115.

It is an unprimeable number.

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, 39407 + ... + 39416.

It is an arithmetic number, because the mean of its divisors is an integer number (118236).

2³⁹⁴¹¹⁵ is an apocalyptic number.

394115 is a deficient number, since it is larger than the sum of its proper divisors (78829).

394115 is an equidigital number, since it uses as much as digits as its factorization.

394115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78828.

The product of its digits is 540, while the sum is 23.

The square root of 394115 is about 627.7857914926. The cubic root of 394115 is about 73.3175011736.

The spelling of 394115 in words is "three hundred ninety-four thousand, one hundred fifteen".