447663 has 12 divisors (see below), whose sum is σ = 619080. Its totient is φ = 287712.

The previous prime is 447641. The next prime is 447677. The reversal of 447663 is 366744.

It is not a de Polignac number, because 447663 - 2¹² = 443567 is a prime.

447663 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 447663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4053 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (51590).

2⁴⁴⁷⁶⁶³ is an apocalyptic number.

447663 is a deficient number, since it is larger than the sum of its proper divisors (171417).

447663 is a wasteful number, since it uses less digits than its factorization.

447663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 149 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 447663 is about 669.0762288409. The cubic root of 447663 is about 76.4980562537.

The spelling of 447663 in words is "four hundred forty-seven thousand, six hundred sixty-three".