394147 has 4 divisors (see below), whose sum is σ = 424480. Its totient is φ = 363816.

The previous prime is 394129. The next prime is 394153. The reversal of 394147 is 741493.

394147 is nontrivially palindromic in base 15.

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 394147 - 2⁷ = 394019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394157) 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, 15147 + ... + 15172.

It is an arithmetic number, because the mean of its divisors is an integer number (106120).

2³⁹⁴¹⁴⁷ is an apocalyptic number.

394147 is a deficient number, since it is larger than the sum of its proper divisors (30333).

394147 is a wasteful number, since it uses less digits than its factorization.

394147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30332.

The product of its digits is 3024, while the sum is 28.

The square root of 394147 is about 627.8112773756. The cubic root of 394147 is about 73.3194854476.

It can be divided in two parts, 39 and 4147, that added together give a triangular number (4186 = T₉₁).

The spelling of 394147 in words is "three hundred ninety-four thousand, one hundred forty-seven".