447490334729 has 4 divisors (see below), whose sum is σ = 447497931540. Its totient is φ = 447482737920.

The previous prime is 447490334723. The next prime is 447490334749. The reversal of 447490334729 is 927433094744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217670768704 + 229819566025 = 466552^2 + 479395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447490334729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447490334723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3709352 + ... + 3828089.

It is an arithmetic number, because the mean of its divisors is an integer number (111874482885).

Almost surely, 2^447490334729 is an apocalyptic number.

It is an amenable number.

447490334729 is a deficient number, since it is larger than the sum of its proper divisors (7596811).

447490334729 is an equidigital number, since it uses as much as digits as its factorization.

447490334729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596810.

The product of its (nonzero) digits is 18289152, while the sum is 56.

The spelling of 447490334729 in words is "four hundred forty-seven billion, four hundred ninety million, three hundred thirty-four thousand, seven hundred twenty-nine".