447394 has 4 divisors (see below), whose sum is σ = 671094. Its totient is φ = 223696.

The previous prime is 447353. The next prime is 447401. The reversal of 447394 is 493744.

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

It can be written as a sum of positive squares in only one way, i.e., 378225 + 69169 = 615^2 + 263^2 .

It is a super-2 number, since 2×447394² = 400322782472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111847 + ... + 111850.

2⁴⁴⁷³⁹⁴ is an apocalyptic number.

447394 is a deficient number, since it is larger than the sum of its proper divisors (223700).

447394 is a wasteful number, since it uses less digits than its factorization.

447394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223699.

The product of its digits is 12096, while the sum is 31.

The square root of 447394 is about 668.8751752009. The cubic root of 447394 is about 76.4827306626.

It can be divided in two parts, 447 and 394, that added together give a square (841 = 29²).

The spelling of 447394 in words is "four hundred forty-seven thousand, three hundred ninety-four".