394513 has 4 divisors (see below), whose sum is σ = 450880. Its totient is φ = 338148.

The previous prime is 394507. The next prime is 394523. The reversal of 394513 is 315493.

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 394513 - 2⁵ = 394481 is a prime.

It is a Duffinian number.

394513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (394523) 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, 28173 + ... + 28186.

It is an arithmetic number, because the mean of its divisors is an integer number (112720).

2³⁹⁴⁵¹³ is an apocalyptic number.

It is an amenable number.

394513 is a deficient number, since it is larger than the sum of its proper divisors (56367).

394513 is an equidigital number, since it uses as much as digits as its factorization.

394513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56366.

The product of its digits is 1620, while the sum is 25.

The square root of 394513 is about 628.1026986091. The cubic root of 394513 is about 73.3421729473.

The spelling of 394513 in words is "three hundred ninety-four thousand, five hundred thirteen".