394547 has 4 divisors (see below), whose sum is σ = 400176. Its totient is φ = 388920.

The previous prime is 394529. The next prime is 394549. The reversal of 394547 is 745493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394547 - 2⁸ = 394291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 394547.

It is not an unprimeable number, because it can be changed into a prime (394549) 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, 2708 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (100044).

2³⁹⁴⁵⁴⁷ is an apocalyptic number.

394547 is a deficient number, since it is larger than the sum of its proper divisors (5629).

394547 is an equidigital number, since it uses as much as digits as its factorization.

394547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628.

The product of its digits is 15120, while the sum is 32.

The square root of 394547 is about 628.1297636635. The cubic root of 394547 is about 73.3442798168.

The spelling of 394547 in words is "three hundred ninety-four thousand, five hundred forty-seven".