447716825 has 6 divisors (see below), whose sum is σ = 555168894. Its totient is φ = 358173440.

The previous prime is 447716809. The next prime is 447716831. The reversal of 447716825 is 528617744.

It can be written as a sum of positive squares in 3 ways, for example, as 31393609 + 416323216 = 5603^2 + 20404^2 .

It is not a de Polignac number, because 447716825 - 2⁴ = 447716809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8954312 + ... + 8954361.

It is an arithmetic number, because the mean of its divisors is an integer number (92528149).

Almost surely, 2^447716825 is an apocalyptic number.

It is an amenable number.

447716825 is a deficient number, since it is larger than the sum of its proper divisors (107452069).

447716825 is a wasteful number, since it uses less digits than its factorization.

447716825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17908683 (or 17908678 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 447716825 is about 21159.3200505120. The cubic root of 447716825 is about 765.0112205910.

The spelling of 447716825 in words is "four hundred forty-seven million, seven hundred sixteen thousand, eight hundred twenty-five".