447641745 has 16 divisors (see below), whose sum is σ = 722800320. Its totient is φ = 236551104.

The previous prime is 447641737. The next prime is 447641783. The reversal of 447641745 is 547146744.

It is not a de Polignac number, because 447641745 - 2³ = 447641737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 447641697 and 447641706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135259 + ... + 138528.

It is an arithmetic number, because the mean of its divisors is an integer number (45175020).

Almost surely, 2^447641745 is an apocalyptic number.

It is an amenable number.

447641745 is a deficient number, since it is larger than the sum of its proper divisors (275158575).

447641745 is a wasteful number, since it uses less digits than its factorization.

447641745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273904.

The product of its digits is 376320, while the sum is 42.

The square root of 447641745 is about 21157.5458170365. The cubic root of 447641745 is about 764.9684552758.

The spelling of 447641745 in words is "four hundred forty-seven million, six hundred forty-one thousand, seven hundred forty-five".