447393 has 16 divisors (see below), whose sum is σ = 645120. Its totient is φ = 274896.

The previous prime is 447353. The next prime is 447401. The reversal of 447393 is 393744.

It is not a de Polignac number, because 447393 - 2⁸ = 447137 is a prime.

447393 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 447393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596 + ... + 2762.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2⁴⁴⁷³⁹³ is an apocalyptic number.

It is an amenable number.

447393 is a deficient number, since it is larger than the sum of its proper divisors (197727).

447393 is a wasteful number, since it uses less digits than its factorization.

447393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236.

The product of its digits is 9072, while the sum is 30.

The square root of 447393 is about 668.8744276768. The cubic root of 447393 is about 76.4826736787.

The spelling of 447393 in words is "four hundred forty-seven thousand, three hundred ninety-three".