447623888209 has 27 divisors (see below), whose sum is σ = 494178956649. Its totient is φ = 405362196360.

The previous prime is 447623888203. The next prime is 447623888213. The reversal of 447623888209 is 902888326744.

The square root of 447623888209 is 669047.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 447623888209 - 2¹³ = 447623880017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447623888203) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 292372774 + ... + 292374304.

Almost surely, 2^447623888209 is an apocalyptic number.

447623888209 is the 669047-th square number.

447623888209 is the 334524-th centered octagonal number.

It is an amenable number.

447623888209 is a deficient number, since it is larger than the sum of its proper divisors (46555068440).

447623888209 is an frugal number, since it uses more digits than its factorization.

447623888209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 447623888209 in words is "four hundred forty-seven billion, six hundred twenty-three million, eight hundred eighty-eight thousand, two hundred nine".