447864225 has 24 divisors (see below), whose sum is σ = 742645920. Its totient is φ = 238158720.

The previous prime is 447864203. The next prime is 447864227. The reversal of 447864225 is 522468744.

It is a happy number.

It is not a de Polignac number, because 447864225 - 2²⁵ = 414309793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447864227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17421 + ... + 34629.

It is an arithmetic number, because the mean of its divisors is an integer number (30943580).

Almost surely, 2^447864225 is an apocalyptic number.

It is an amenable number.

447864225 is a deficient number, since it is larger than the sum of its proper divisors (294781695).

447864225 is a wasteful number, since it uses less digits than its factorization.

447864225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17569 (or 17564 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 447864225 is about 21162.8028625700. The cubic root of 447864225 is about 765.0951652297.

The spelling of 447864225 in words is "four hundred forty-seven million, eight hundred sixty-four thousand, two hundred twenty-five".