447480661 has 4 divisors (see below), whose sum is σ = 457887232. Its totient is φ = 437074092.

The previous prime is 447480659. The next prime is 447480667. The reversal of 447480661 is 166084744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447480661 - 2¹ = 447480659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447480667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5203221 + ... + 5203306.

It is an arithmetic number, because the mean of its divisors is an integer number (114471808).

Almost surely, 2^447480661 is an apocalyptic number.

It is an amenable number.

447480661 is a deficient number, since it is larger than the sum of its proper divisors (10406571).

447480661 is a wasteful number, since it uses less digits than its factorization.

447480661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406570.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 447480661 is about 21153.7387002865. The cubic root of 447480661 is about 764.8766862338.

The spelling of 447480661 in words is "four hundred forty-seven million, four hundred eighty thousand, six hundred sixty-one".